Client: Add a wishlist for store items
I think it would be really nice if there was a wishlist feature in the client shop similar to the steam store. This is especially true with things like flash sales and the upcoming end of game gifting options.
It's pretty simple really. You choose an item in store and click an "add to wishlist button". You manage your wishlist from a separate tab. Whenever you select an item in the store there will be a list of people on your friend list who want it, and when you select a friend in the gifting centre (or at the end of a game as the case may be) you can see a list of all the stuff they want.
We can even get special rewards for giving a gift on a friend list. I think this would be much simpler than having to ask every player what they would like.