Coming to Ubuntu 11.10 from Windows 7, I'm used to blindly hitting Windows-L to lock the screen before I get up from the computer.
On Ubuntu, I've gotten used to the Control-Alt-L shortcut, but I find that sometimes I have to try the shortcut 2-3 times before it actually locks.
This is also the case with some other shortcuts - I've noticed it with Ctrl-Alt- to switch between workspaces.
Is there anything I can do to make the key shortcuts more reliable?