If you haven’t checked them out before, the folks at Humble Bundle are worth a look. They come up with various bundles of items and offer them on a pay what you want basis, then split the proceeds between the content creators and one or more charities chosen by that creator (if it is more than one charity, you can direct them to apply your money to just one of them, or give a specific percentage to each of them). If you pay more than a fairly low average payment, that unlocks some additional goodies in the same collection while increasing your total charitable contribution. As each bundle hits various total target amounts contributed, additional swag is added to the bundle, pretty much the same reward system used by Kickstarter, where both your individual contributions and the total group contributions up the ante on the deal.
Most often but not always the stuff Humble Bundle has on offer are games, books, and audio dramas. They have a couple of good ones this week, with their Books choice being Neil Gaiman Rarities. Besides his very first published story, it also has one of his Babylon 5 screenplays and a boatload of other rare tales and collections. As you noticed if you took the first link I posted here, the main package this week is about $200 of Tom Clancy classic games, while the Weekly Bundle and Mobile Bundle each have a selection of games as well. Every few days something gets added, or a selection changes, so you want to check back often. As for me, I am going to grab the Neil Gaiman bundle this week, going high enough over the base amount to both maximize my charitable contribution and make sure I get all the extra stuff as each target is reached. This is my kind of win-win, and they keep doing it, over and over.