What’s a secret skill or ability you have or wish you had?

I actually have a really good secret skill that’s super useful.
I can go somewhere once and then I can remember exactly how to get there without using a map or a sat nav. I can visualise the entire journey in my head as well.
Case in point: my friends moved to a new house in a new town. I went there once using my sat nav. Every other visit, I’ve never needed a sat nav.
I don’t know if it’s a slightly crap superpower or actually something to brag about, but it’s very very handy.