It was too late to repel them. The chairs were rife with brown-widow nests.

Anyway, now I just blast these areas with a hose from time to time. Individual spiders I will relocate if they're in an area where people are likely to sit.

There's a tiny baby spider roosting in my oven hood right now. The two last evenings he has descended on a web to look around. I considered putting him outside, but it's too cold so I just let him return to his hiding place.