I've found walking, especially uphill & downhill (i live in mountainous area) really slims the thighs. All my life i've had big legs but now they are leaner & mostly muscle.

I'm busy too, so I 'multitask' by parking my car far away from s store so I have to walk there, also I take my cell phone & do all of my calls while walking in the hills.

Every evening I take a sunset stroll with my husband & we talk about our day & make future plans while exercising. It beats tv watching!