I know lots of women who have slim legs but refuse to wear skirts because of unsightly varicose or spider veins. Though heredity plays a role, your genes don't have to doom you to a life of long pants.
In L.A., I see people who are always in their cars, always driving. I encourage them to walk more - walk to the post office, walk to lunch. Even if it is a 10-minute walk, it's so good for you.
Sometimes I log more than my fair share of hours on my tush - behind my desk, in the car, in front of the TV. And all that sitting can turn even the tightest buns into rice pudding.
I like intervals. I will turn a walk into a workout. For example, I walk for five minutes at an easy pace, then power-walk for two minutes and repeat. Intervals blast the fat.