1.25lbs for me this this week. Not a lot but I'm not too unhappy with it, as it's following on from a total 14lbs in the previous 3 weeks (12lbs of which I'd somehow managed to gain in only 15 days during the runup to Christmas - and that's despite trying not to eat much and drinking water instead of wine!).
I think one of the hardest things about doing this is the realisation that it isn't going to be just for a few months, or even a year or so until I can hit a target, but for ever, given that I can gain it again so easily/quickly.
On a more positive note - 1.25 lbs this week means another milestone, over 5 and a half stones now. Suddenly losing another 22.75 lbs doesn't seem anywhere as impossible a target as 100lbs did last year.