Oh the weekends absolutely kill me!! I find them so difficult!
Like you, Im fine during the week because Im at work and have set break times and am too occupied to think about food but the weekends I find I really struggle - the fridge calls me!!
I try to save as many points as possible during the week for this but find I do sometimes go over at the weekend and end up having to pay back..
I found saving 4 a day during the week when I was on 27, 26, 25, 24, 23, 22 points but now that Im on 20 a day I find living on 16 a day during the week really hard and seldom get to save the full 4. AAARRGGHH
Glad Im not the only one though!!