Keep Track of My Deals
As a (casual or serious) gamer, I want to be notified when my games go on sale, so that I can buy them at a discount without constantly checking if they are on sale.
Locarno shared this idea
There's a site for this called "Isthereanydeal"
This is definitely something I will be adding in the future; Steam already does this with their wishlist feature (they'll email you when a game on your wishlist is on sale), I would like to do the same except also find Amazon, Steam, GameFly, or other sales.