Okay this thread is a couple monthes old, and I don't know if you will even think to check this anymore Sigi, but I wanted to respond.
I've found a fun way to exercise with my kids. I just turn on some fun music, and we dance. I know it sounds simple, but I can get a really good work out this way. I just make sure that I am moving, and jumping around a lot. And if you dance with the baby you could even get in an upperbody work out. My kids also like it if we play duck duck goose, but we have our own version. Instead of chasing each other around the circle, we chase each other around the house. Lots of running. Of course I have to make sure there are no toys, or other things lying on the floor that can be tripped on. It may not be something you want to do on a daily basis to lose weight, but it is definatly something you can do sometimes. And of course it's something the kids will love.
Anyway I don't know if this was the kind of thing you were looking for, but you can do it year round, and hubby dosen't have to worry about you, AND it is a fun bonding time for you, and the kids. This is one of my kids favorite things. Anyway hope this helps (if you see it). Good luck.
"You don't stop laughing because you grow old. You grow old because you stop laughing."
"There is so much good in the worst of us and so much bad in the best of us, it hardly behooves any of us to talk about the rest of us."