diff --git a/README.md b/README.md
index e786f85..fb53d07 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Create A File Descriptor with Process Substitution](zsh/create-a-file-descriptor-with-process-substitution.md)
 - [Killing A Frozen SSH Session](zsh/killing-a-frozen-ssh-session.md)
 - [Search History](zsh/search-history.md)
+- [tmux in your tmux](zsh/tmux-in-your-tmux.md)
 - [Watch This Run Repeatedly](zsh/watch-this-run-repeatedly.md)
 - [Where Are The Binaries?](zsh/where-are-the-binaries.md)
 
diff --git a/zsh/tmux-in-your-tmux.md b/zsh/tmux-in-your-tmux.md
new file mode 100644
index 0000000..c4d70e0
--- /dev/null
+++ b/zsh/tmux-in-your-tmux.md
@@ -0,0 +1,12 @@
+# tmux in your tmux
+
+If you are running tmux locally and you shell into another machine to
+access tmux remotely, you will suddenly find yourself in tmux inception.
+You will have a tmux instance running within your local tmux instance. If
+you have the same prefix key set for both, then you may be wondering how
+you can send a tmux command to the *inner* tmux instance.
+
+If you press your prefix twice (e.g. `<C-a> <C-a>`), then the second prefix
+will be sent to the inner tmux instance which will then be listening for
+the rest of your command. So, to open a new window within the inner tmux
+instance, you can hit `<C-a> <C-a> c`.