Favourite and least favourite skills to build?

Handiness is fun to build, simply because there are so many things to upgrade. I don't even need most upgrades I make, but it's fun to keep improving on all my tech.

I like taking pictures, but the Photography skill is garbage. It takes way too long to level it up, and I'm fine with the pictures I take without it. I can just take five at once - odds are, I'll already have at least 1 picture with perfect quality. It's just not that necessary.