That's exactly the thing though! Once someone screws up they tell themself that it is automatically ok to eat bad the rest of the day!
NO it is not!
A new day doesn't have to be the start of you eating good again.
So you have a donut. Big deal. After that, did the donut make you feel good or guilty? GUILTY!
Therefore, don't wait until Monday to clean up your act. Do it the same day. One bad thing isn't going to have HUGE, MASSIVE effects, it's the idea that it is ok to keep eating that way the rest of the day because you already messed up.
Seriously, get in gear. What's more important? A moment of pleasure, or health for longterm?
Sorry if it came of mean, but sometimes I just have to tell myself, "Hey fatty, get away from that donuty right now. How would that look on your stomach?"
I'm so serious.