Remove the `job finished' messages that proliferate whenever I open a new terminal
Enable GPG agent
Don't set $TERM in .profile

Tmux relies being able to set this properly.
Configure tmux for multi-client session sharing

I create the main tmux session, and immediately detach it. I then create
sessions and tmux windows as needed and connect them all to the master
session. Because the master session is already in the background, I can
rebind `C-b d' to kill the current session, handily avoiding the many
useless detached tmux sessions that this master session business usually
brings with it.
Setup tmux for 256 colors
Connect to tmux in all interactive BASH sessions