I think anyone who is really afraid of spiders (DD) can tune into their movements! No good putting house spiders outside, it’s an inconvenience to them, nothing more, as they can get back inside easily, and will do ( not called house spiders for nothing.)
Fresh conkers do work, but after a while lose their scent.
Actually most strong scents deter them as they have sensitive little noses.When you have newly decorated a room, you won’t see one for ages.
I’m afraid I don’t set them free, as they breed even more spiders.
A friend has a new house (5 years) and never gets them, wish our house wasn’t an old one.