Re-attach uniquely

If you are attached to a remote screen over SSH and the connection drops, then you re-attach later with screen -x, there will still be some pseudo-zombie sessions attached. This is annoying because the new sessions will have their display dimensions locked to the dimensions of the old sessions. To connect to a screen session as the only client (disconnecting all the old half-dead sessions), use:

$ screen -d -r

Disable default bash completions

At least on debian wheezy, screen has tab completions which prevent, eg:

$ screen /dev/ttyU<TAB>

from completing as /dev/ttyUSB0 et al.

To disable this, go to /usr/share/bash-completion/completions and sudo mv screen screen.disabled.