Originally Posted by fishnfly

I'e been doing this for a couple years. It all adds up, if you have the time. I switch from doing it for my airline, and then hilton. That way, it works out to about every 90 days. If I'm early and it's been a particularly busy survery season, I just wait till I get 50.00 and then cash it in. By then, it's been over 90 days for both, so I can choose. Plus, you get a bit better deal, if you wait.
Don't let your points expire! They take them away. Spend them!
I find doing a survey is a good break from my otherwise work at the comp.