[poltergeist]

Like someone mentioned, 28 days is what it takes to form a habit, through the formation of neural links in the brain.

However, to last 28 days, you will need something else to inspire you. Nothing works like love/sex, which are evolutionary needs embedded into our limbic memory. You have to somehow derive inspiration from either of these two to last 28 days.

I know because I have, on 2 occasions - and have achieved minor miracles :D . On others, I continue being the same as you. But its comforting ( and scary since I don't want to be 30 and still a lazy ass ) to know that there's more than one of us.