I think I will look for them. Are they available at Wal mart? I know a lot of people have gotten TBL workout DVD there, but I haven't found it in any of the stores around here. I'll keep looking!
I'm lucky, because I do get a lot of hills, and even some trails through the woods, that require actual climbing! Those are my favorite.
I got my 10 year old daughter a new bike for Christmas this year. We've been able to go on 1 bike ride, but I'm looking forward to more. She is excited, because she has always used her brother's hand-me-down bikes before. This new one is definitely hers! It's lavendar! I know I can really feel those bike rides. As I said, lots of hills-- I know it's a much tougher workout than just walking. I love it when I can feel those muscles burn! ( my rear end too, after the first ride of the season!

)
But, I know you can't have too many optiions! DVD's are cheaper than a treadmill!
I have never worked out on a tread mill. But I have on an exercise bike. 4 miles on an exercise bike is exhausting. 4 miles outside, is a delight! Is it the same on a treadmill? Do the miles seem to drag on forever? I can walk outside for an hour, and the time flies. Does it creep on a treadmill?