What frequent shopper programs / reward point systems do you use?
Sometimes they can be a hassle, but it's fun getting something [seemingly] free every so often.
I get 1600 X-box Live points about every 4 months from Speedway rewards club. (I have to get gas anyway so it's a nice bonus)
I hit 1000 points on Coke Rewards but have yet to browse any possibilities.
My parents dropped two and a half grand at Best Buy and I reaped the rewards points on my card.
Back in the day, I collected Kool-Aid points.
Anyone else make use of frequent shopper / reward systems?