Do not just stay in your yoga clothes all day when yoga gets cancelled and then go to jazzercise in 'em. You need more support up top for aerobics and you need tighter pants that you will not be pulling up throughout class.
On a more positive note, one of the women at Jazzercise who normally stands behind me commented last night that the view from the rear is getting better; i.e. - I really seem to be firming up and defining in a positive way. I've been doing a lot of jazzercise and yoga so maybe its all coming together. Need to start eating better, but still, its the sort of positive reinforcement / feedback that can help to change eating habits. So thanks!