We're eager for that moment to throw our windows open to fresh spring breezes — and it seems that the things outside our homes are awaiting the opportunity, too (but for different motives). If it's not the pollen blowing inside, it's the bugs that somehow make it through the tiniest nooks and crannies you don't see (even if you have screens).
Fortunately, there's an easy way to deter bugs (particularly spiders) from making their home in yours — one that doesn't involve spraying poisonous pesticides indoors.
Mix a 50/50 solution of water and white vinegar and spray around your window frame. Do this indoors, and outside too, if you're able to.
As Natural Living Ideas puts it so well:
If you don't have a bottle of vinegar in your house, you should really get one as it has about a gazillion uses, including repelling spiders. As vinegar contains acetic acid that harms them, using a diluted vinegar solution will help you to safely and successfully repel the eight-legged creatures.
My bedroom window growing up faced a tree that was beautiful, but also home to many bugs (again, particularly spiders) that would take a little hop on over to the window and then a little trip into my room. My mother's trusty vinegar-and-water sprays kept them out.
I know what you're thinking, and here's the answer: the smell — to human noses at least — dissipated as soon as the vinegar dried. Besides, I'd take a whiff of vinegar over spiders in my bedroom any day, wouldn't you?