These are also commonly called daddy long-legs spiders, but I more associate that name with the harvestman which I’ll hopefully cover not too long from not (I have to find one first!). I see these quite a lot in my basement. It’s odd, though, that I seem to find a lot more dead ones than living. They spin very messy tangled webs in corners of damp dark places. It’s also quite interesting that certain species of this spider invade the webs of others to eat them, their eggs, and even to steal their prey.