Lucky Finds in Second Hand Sales

[CGTitan 13]

Basically, I am a bargain hunter. I go for the cheap options and wear them on my sleeve. And sometimes, I luck on. For example I once got myself a second hand copy of Assassin's Creed: The Rebel Collection for the Switch. When we checked out its contents, it also had a copy of Skyrim for the Switch inside. And yet I still was able to get it for no extra charge. Talk about lucky!

So I wonder, have any of you had any good luck with such finds? Feel free to reply about your lucky days.