So I like probably everybody find sockets all the time. One time I found a socket and two 1/4" drive extensions (about 4" each I guess), one with a regular tip and one with a ball tip so the socket can rotate a little. Those sat around in my garage for months (I'm too lazy to properly clean)

This past week I had to change the battery in my car. I needed to reach down and undo the bolt for the clamp that held the bottom lip of the battery fixed. My eye fell on that socket and extenders, and it turned out to be not only the right size socket for the bolt, but the 2 extenders were just the right length, and the flexy head was also necessary to get the socket on from that not-quite-straight angle.