Do any of you wear the spandex-type shorts to run in? I'm tired of pulling down the legs of my shorts as my jumbo thighs rub together and the legs creep up. Also, I was one scary mess last night, the khaki colored shorts I was wearing show sweat off quite a bit and it looked like I peed myself from the front view. I'm pretty cheap, but I'm thinking I could probably buy one good pair of running shorts. Suggestions?