Hmm.. I'm liking this idea because a weekly task could keep people motivated, and you can change your task every week. That way you don't get bored trying to stick to the same old crap! Other weekly tasks people could do (please feel free to add your own) :-
- Give up one food vice for a week
- Aim to do 30 minutes of exercise a day, or maybe three times during the week.
- Aim to get out of the house more (big thing for me, bad anxiety!)
- Take packed lunches to work instead of buying 'spare of the minute' food.
- Make a (realistic) meal plan and stick to it.
- Replace 'indulgent' snacks with healthier options ie/fruit or a bowl of cereal.