I can't tell you WHAT to do, but I've got some tips for how to do it. Also, I don't know if you want to lose weight or just exercise. Assuming you want to lose weight (really, no offense at all, I have no idea what you look like):
Get an exercise buddy/diet buddy/someone who cares about your exercising, who will keep you on track. To exercise, you really gotta be motivated. I mean, honestly, who likes to exercise? If you've got someone who cares, you'll be more likely to do it.
Keep track of what you do, how many calories burned, weight lost, inches lost, anything you'd like. When you realize it's making a difference, you'll be more motivated. (Or not, but it works in some cases).
If you're using some of those home exercise dvds, get something you're actually going to use, rather than something that looks the most helpful. As helpful as that dvd may look, it won't do anything if you don't want to use it. If you're going to use a belly dancing dvd, get a belly dancing dvd. There are places that sell stripper dvds. If you'll use it, it'll do good.
Similarly, don't waste money on any machines that you won't use. They're expensive, and if they don't get used, they just end up places to hang clothes.
Buy some clothes in the size you want to be. Some cute clothes that you can't wait to wear. Bonus points if you can't get into them now. It's just another goal.
Good luck!
