An ultimate productivity key-binding in tmux is one to switch to the last session. I use this to quickly get between sessions really quick. Often I am working and need to lookup a quick note, or copy something into my notes, then get back to where I was quickly.
bind -n M-b switch-client -l
I think of this hub and spoke model, and use last-session
to quickly drive it.
Be sure to check out the full youtube playlist and subscribe if you like it.
https://www.youtube.com/playlist?list=PLTRNG6WIHETB4reAxbWza3CZeP9KL6Bkr
Also check out this long form post for more about how I use tmux.