I thought this was going to be about a technique I've been using lately for free trials.

And it goes like this, I sign up for the free trial and immediately cancel it, so I don't forget. It will still let me have the free trial until the end of the time specified.

And then if I do decide to keep it, the worst thing that happens is it just stops working at the end of the free trial and then I go ahead and re-enable it.

Says me a ton of money and anger from forgetting to cancel a free trial.