To-Don't-List

I've just been reading some work by Daniel Pink, an author, his most recent book: Drive: the surprising truth about what motivates us (I haven't read this). I'm reading the Flip Manifesto and in that he talks about how we often write to-do-lists and get a buzz from crossing items off the list when they are done but what we rarely do is write a to-don't-list. This kind of list is used to identify those things that distract us from doing our job.

Here's my list:

Don't go to sleep after 11pm
Don't respond to emails as they arrive

I'm sure there is more I could add but it's a good start!

What would you put on your to-don't-list?