Do you save free trials?

This is stupid, but do you ever see an offer for Netflix or Gamefly or WOW, or whatever that offer you the chance to try their service for free for a month and even though you're interested you never do it because you feel like there might be a better time to use said free trial or a time where you would NEED the free trial? Am I the only one? Is that a run on sentence?

I do this, but with coupons to places I might need to go eventually (like Home Depot or Jiffy Lube), and then just never redeem em ...