I started this before (along with the squats, plank, and crunch challenges) but derailed myself and didn't start up again.
This time I'm just taking on the one 30 Day Dumbbell challenge: http://wholelifestylenutrition.com/a...ell-challenge/
I'll be using 8 lb dumbbells (I don't think I'm ready for 10 and when I started this before, I tried 2, 3s, and then 5s and they were all too light).
Each day has animated GIFs that show you how to do that day's exercise. I will probably use a weight bench for most of mine, although I do have an exercise ball I can pump up. I'm not sure it's the right size for exercise for me, though--I bought it to use as a chair when I was having back problems. The text says they can be done with an exercise ball, a weight bench, a chair, etc.
So, this is my commitment to start up tonight. I hope some of you will join me to help me stay motivated!

Although I would have been perfectly happy if you'd started yesterday, but it will be fun doing the same workouts on the same days, bethfromDayton.