diff --git a/examples/gcloud.rs b/examples/gcloud.rs
index 06e2ad1..d1de492 100644
--- a/examples/gcloud.rs
+++ b/examples/gcloud.rs
@@ -40,7 +40,7 @@ fn main() -> Result<(), io::Error> {
         .set_keep_alive(10)
         .set_security_opts(security_options);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
     let topic = "/devices/".to_owned() + &config.id + "/events/imu";
 
     thread::spawn(move || {
diff --git a/examples/httpconnect.rs b/examples/httpconnect.rs
index 9bb223e..055dcdf 100644
--- a/examples/httpconnect.rs
+++ b/examples/httpconnect.rs
@@ -28,7 +28,7 @@ fn main() {
         .set_reconnect_opts(reconnect_options)
         .set_proxy(proxy);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
 
     mqtt_client.subscribe("hello/world", QoS::AtLeastOnce).unwrap();
 
diff --git a/examples/keepalive.rs b/examples/keepalive.rs
index 5937d58..383d305 100644
--- a/examples/keepalive.rs
+++ b/examples/keepalive.rs
@@ -9,7 +9,7 @@ fn main() {
         .set_keep_alive(10)
         .set_reconnect_opts(reconnect_options);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
     thread::spawn(move || {
         thread::sleep(Duration::from_secs(2));
 
diff --git a/examples/playpause.rs b/examples/playpause.rs
index 3686b26..7442181 100644
--- a/examples/playpause.rs
+++ b/examples/playpause.rs
@@ -5,12 +5,12 @@ fn main() {
     pretty_env_logger::init();
     let mqtt_options = MqttOptions::new("test-id", "127.0.0.1", 1883).set_keep_alive(10);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
 
     mqtt_client.subscribe("hello/world", QoS::AtLeastOnce).unwrap();
 
-    let mut c1 = mqtt_client.clone();
-    let mut c2 = mqtt_client.clone();
+    let c1 = mqtt_client.clone();
+    let c2 = mqtt_client.clone();
 
     thread::spawn(move || {
         let dur = Duration::new(1, 0);
diff --git a/examples/pubsub1.rs b/examples/pubsub1.rs
index cc029a3..2f4d02f 100644
--- a/examples/pubsub1.rs
+++ b/examples/pubsub1.rs
@@ -15,7 +15,7 @@ fn main() {
                                     .set_reconnect_opts(reconnection_options)
                                     .set_clean_session(false);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
     mqtt_client.subscribe("hello/world", QoS::AtLeastOnce).unwrap();
 
     thread::spawn(move || {
diff --git a/examples/pubsub2.rs b/examples/pubsub2.rs
index b7c5d40..4bc752c 100644
--- a/examples/pubsub2.rs
+++ b/examples/pubsub2.rs
@@ -4,7 +4,7 @@ use std::{thread, time::Duration};
 fn main() {
     pretty_env_logger::init();
     let mqtt_options = MqttOptions::new("test-pubsub2", "127.0.0.1", 1883).set_keep_alive(10);
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
 
    //mqtt_client.subscribe("hello/world", QoS::ExactlyOnce).unwrap();
 
diff --git a/examples/select.rs b/examples/select.rs
index 8abcc9c..cd10a5f 100644
--- a/examples/select.rs
+++ b/examples/select.rs
@@ -6,7 +6,7 @@ use std::{thread, time::Duration};
 fn main() {
     pretty_env_logger::init();
     let mqtt_options = MqttOptions::new("test-id", "127.0.0.1", 1883).set_keep_alive(30);
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
     let (done_tx, done_rx) = crossbeam_channel::bounded(1);
 
     mqtt_client.subscribe("hello/world", QoS::AtLeastOnce).unwrap();
diff --git a/examples/shutdown.rs b/examples/shutdown.rs
index 8e4a9ec..b9491e1 100644
--- a/examples/shutdown.rs
+++ b/examples/shutdown.rs
@@ -5,7 +5,7 @@ fn main() {
     pretty_env_logger::init();
     let mqtt_options = MqttOptions::new("test-id-1", "localhost", 1883).set_keep_alive(10);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
 
     thread::spawn(move || {
         thread::sleep(Duration::from_secs(5));
diff --git a/examples/tls.rs b/examples/tls.rs
index 14f9904..6a30385 100644
--- a/examples/tls.rs
+++ b/examples/tls.rs
@@ -15,7 +15,7 @@ fn main() {
         .set_client_auth(client_cert, client_key)
         .set_keep_alive(10);
 
-    let (mut mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
+    let (mqtt_client, notifications) = MqttClient::start(mqtt_options).unwrap();
     let topic = "hello/world";
 
     thread::spawn(move || {
diff --git a/src/client/mod.rs b/src/client/mod.rs
index 585a5bf..6020f0a 100644
--- a/src/client/mod.rs
+++ b/src/client/mod.rs
@@ -102,7 +102,7 @@ impl MqttClient {
     }
 
     /// Requests the eventloop for mqtt publish
-    pub fn publish<S, V, B>(&mut self, topic: S, qos: QoS, retained: B, payload: V) -> Result<(), ClientError>
+    pub fn publish<S, V, B>(&self, topic: S, qos: QoS, retained: B, payload: V) -> Result<(), ClientError>
     where
         S: Into<String>,
         V: Into<Vec<u8>>,
@@ -122,13 +122,13 @@ impl MqttClient {
             payload: Arc::new(payload),
         };
 
-        let tx = &mut self.request_tx;
+        let tx = self.request_tx.clone();
         tx.send(Request::Publish(publish)).wait()?;
         Ok(())
     }
 
     /// Requests the eventloop for mqtt subscribe
-    pub fn subscribe<S>(&mut self, topic: S, qos: QoS) -> Result<(), ClientError>
+    pub fn subscribe<S>(&self, topic: S, qos: QoS) -> Result<(), ClientError>
     where
         S: Into<String>,
     {
@@ -141,13 +141,13 @@ impl MqttClient {
             topics: vec![topic],
         };
 
-        let tx = &mut self.request_tx;
+        let tx = self.request_tx.clone();
         tx.send(Request::Subscribe(subscribe)).wait()?;
         Ok(())
     }
 
     /// Requests the eventloop for mqtt unsubscribe
-    pub fn unsubscribe<S>(&mut self, topic: S) -> Result<(), ClientError>
+    pub fn unsubscribe<S>(&self, topic: S) -> Result<(), ClientError>
         where
             S: Into<String>,
     {
@@ -156,7 +156,7 @@ impl MqttClient {
             topics: vec![topic.into()],
         };
 
-        let tx = &mut self.request_tx;
+        let tx = self.request_tx.clone();
         tx.send(Request::Unsubscribe(unsubscribe)).wait()?;
         Ok(())
     }
@@ -166,24 +166,24 @@ impl MqttClient {
     /// network for reconnection
     ///
     /// [Resume]: struct.MqttClient.html#method.resume
-    pub fn pause(&mut self) -> Result<(), ClientError> {
-        let tx = &mut self.command_tx;
+    pub fn pause(&self) -> Result<(), ClientError> {
+        let tx = self.command_tx.clone();
         tx.send(Command::Pause).wait()?;
         Ok(())
     }
 
     /// Commands the network eventloop to reconnect to the broker and
     /// resume network io
-    pub fn resume(&mut self) -> Result<(), ClientError> {
-        let tx = &mut self.command_tx;
+    pub fn resume(&self) -> Result<(), ClientError> {
+        let tx = self.command_tx.clone();
         tx.send(Command::Resume).wait()?;
         Ok(())
     }
 
     /// Commands the network eventloop to gracefully shutdown
     /// the connection to the broker.
-    pub fn shutdown(&mut self) -> Result<(), ClientError> {
-        let tx = &mut self.request_tx;
+    pub fn shutdown(&self) -> Result<(), ClientError> {
+        let tx = self.request_tx.clone();
         tx.send(Request::Disconnect).wait()?;
         Ok(())
     }