Are Mondays a curse for you? Or a blessing?
I say the word curse, because it all too often looks like this:
"It doesn't matter that I fell off the wagon the last few days, I will start again on Monday"
You can swap "Monday" for tomorrow, next week, or, as so often happens, in the New Year.
(Speaking of which, just how is that New Year's Resolution working out for you?)
The self defeating rationalizations we make to ourselves, the dream killing, secure in the knowledge that is doesn't really matter that our one cheat meal turned into a four-day sugar bender, because, you can start again on Monday.
Maybe as a trainer we need to have a Monday Morning Check-in, where they report on diligence (or lack there-of) in terms of eating and exercise over the preceding Friday, Saturday, and Sunday.
Accountability rocks, and it works.