Arsey I misread that as "calling the corner shop for a bar of chocolate", I thought things must have got pretty intense with you if you had a personal hotline and delivery service from them! 
I've found that after a spell, although the temptation never actually subsides, resisting it does become a habit - again, for me, as long as there is light at the end of the tunnel. For me it isn't The Other 5, it's just the weekend, and as I'm sure I've said before, by the time the weekend rolls around that whatever-it-was usually doesn't seem so urgently tempting as it did on Tuesday. Sometimes it's as if knowing I can't have it is at least 90% of the reason I want it 
I think part of the problem I have is that on my Golden Days I tend to go for a wander, and I pass all sorts of exciting looking eateries, and fantasise about dropping in to sample their delights. But I hardly ever do that on the weekend, so the temptation is permanently frustrated.
But maybe if I did start going for a wander at weekends and stopping for treats I'd find it harder to resist doing the same on weekdays.
StopramblingQuim.