I have a new product I love, running skirts/skorts. Skorts have shorts, skirts have panties, although both can be referred to as skirts.
I own 2 that I've run in, the Brooks running skort and the Running Skirts Athletic skirt. Both have two pockets and can eliminate the need for a waist pack, depending on how much stuff you carry with you.
I like the skirts because they give me all the benefits of shorts (meaning less clothes when it's freaking hot) without worrying about what the people behind me are seeing. I don't usually go crazy over something this fast, but I love it. I'll have to take a picture of me in one and post it.
Oh and I ran hills today. Really just 2 hills, they're reverse hills really. I run down, run flat for a bit, then run back up, repeat. It wasn't fun, but I was able to get up both of them. I'll try it again tomorrow!