Farmpony - its most likely a gain in muscle for you.
I seriously thought I was going to gain this week. I was BAD and I've hit a platuea the last coule weeks. And this past weekend we had a few drinks, a night of chinese buffet and one night stopped for DQ blizzards. I was totally expecting to have gained a few - so was absolutely shocked that I lost. Weighed myself this morning just to make sure it wasn't a fluke - but nope, still at the same weight loss. :)
I have/had a digital that weight to the .2... every little bit of loss I found encouraging. I always keep it in the same place in the bathroom so haven't noticed if it weighted differently in different places. But yes that is a factor to consider. I also use the scale on my WII but I do find that really varies, by placement as well as time of day.
Wow-some of you have had great success & it sounds like most are at least getting smaller & some are staying the same. I haven't come across my scale yet,so don't know where I am weight wise, but my clothes are fitting ok. Love the hints here & the support. The Battle of the Bulge seems to go on for ever-I don't think we can ever let our guard down.