I'd love to be in your challenge. I think our goals are similar. I am 163 and want to weigh 140 by christmas. I used to work out religously before I started work, but slacked off. 4 days a week, 45 minutes per session, yeah, I can do it. My workout routines are usually weights first, cardio next..........I have a bad back, so no running, and I like to do windsor pilates. Seems nobody has joined in yet, but I will be your partner in crime if ya like, it would be fun.