"I'll stick it on my list"
Such is my obsession with Wunderlist and the way it links up between my phone and various computers I use (although it doesn't like IE6 very much) that I utter this abut every ten seconds.
Plus inspired by Raptitude I've been reading Getting Things Done by David Allen. I must confess that I've been working through it in small easily digested chunks. there are loads of thing int his book that have really made me thing but the main one is that if I've added it to my list then I don't have to worry about it (as long as I empty my collection buckets regularly).