I want to tone my arms and legs. I have what you would call the bingo flabby arms lol. I really want to work them out before the wedding and try to tighten them up the best I can. I also want to workout my thighs. Should I invest in weights? I've tried doing the chair dips and I don't really feel the burn in my underarm when I do it. I don't know if I'm doing it correctly. I also don't have a lot of upper body strength so it's really hard to do chair dips. I don't know how many I should so at a time. Any suggestions would be greatly appreciated