I just wore jeans and a tank top. When I do my after photo, I will wear the same outfit.
I think for those who do multiple seasons, we should post all of our pictures at the end. So for all who do season 1, the before and after will be posted at the end of that season. Then those who continue into season 2, we should post all three pics (since season 1's after pic will be season 2's before pic). It'd also be nice to see total weight lost at the end, even though weight lost from the season 1wouldn't count in season 2. I just think it would be great motivation to see changes over a longer period of time. Does this all make sense?