diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://tinyletter.com/jbranchaud).
 
-_981 TILs and counting..._
+_982 TILs and counting..._
 
 ---
 
@@ -886,6 +886,7 @@ _981 TILs and counting..._
 - [Swap Split Panes](tmux/swap-split-panes.md)
 - [Switch To A Specific Session And Window](tmux/switch-to-a-specific-session-and-window.md)
 - [tmux in your tmux](tmux/tmux-in-your-tmux.md)
+- [Toggle Between Two Common Sessions](tmux/toggle-between-two-common-sessions.md)
 
 ### Unix
 
diff --git a/tmux/toggle-between-two-common-sessions.md b/tmux/toggle-between-two-common-sessions.md
new file mode 100644
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@@ -0,0 +1,17 @@
+# Toggle Between Two Common Sessions
+
+With certain projects, such as projects that involve separate frontend and
+backend codebases, I use a separate tmux session for each. This means that for
+certain tasks and features I find myself flipping back and forth between them
+constantly.
+
+This can get tedious with an approach like `<prefix> s` where you then have to
+find and select the other session from the list.
+
+A more efficient alternative is `<prefix> L` -- this takes you to the last
+session. So, if you are in the `backend` session and had previously been in the
+`frontend` session, then hitting `<prefix> L` will immediately place you in
+`frontend`. Hitting that exact same binding a second time will take you right
+back to `backend`.
+
+See `man tmux` for more details.