[ellacraig]

If space is an issue then I think when it gets warmer going outside is a good idea keep in mind all you really need to do is burn fat, so drinking a lot of water ^^ Also if you have just a little bit of room on the floor, doing 5 minutes or doing 2-5 sets of 5-20 crunches a day is a good start to working on your core/burning core fat
ps: biking is such a nice work out!

We don't even have THAT much room inside the house! We really are VERY crowded by junk here. Between that junk, and plants that have to be kept inside for the winter, we have no space. When the plants finally go back outside until next winter we'll be replacing them with mountains of boxes, we already have a couple box mountains as it is.

Outside really is the only option, and it's not warm enough for that yet. Even though it'll be warm enough to put the plants out, it still won't be warm enough for me to be doing stuff outside without bundling up, which makes it kinda impossible to work out if you're all bundled up.

rebounder? walking /jogging on the spot? Only need to take a few steps forward and a few steps back at the right speed. I have a "walking" dvd and all it is, is walking on the spot, front back, side, kicks, side steps, all you can do inside in a sport space.
https://www.youtube.com/results?search_query=leslie+sansome