I use it mostly when cooking. Some dishes need exact time to cook (pizza, rice, etc.) When bringing beer home from the grocery story, I dump it on the floor beside the fridge (because there is usually no place left in the fridge). Then in the evening, if I want a beer, I place the cans into the freezing compartment and drag 1 hour down with the mouse from the Gestimer icon in the menu bar. Then I go to my Mac, put on my headphones, start iTunes and totally forget the time. In exactly 1 hour I'll receive a message from Gestimer that my beer has been cooled down to my favorite temperature. I like my beer to be VERY cold, a few more minutes more and the beer would freeze (which I don't want, of course) and a few minutes less wouldn't impart the same taste I prefer. There are several other apps that could do this, but none of them can do it as easily as Gestimer.