You cannot spider-proof your home completely. They are ancient, patient creatures that have survived dinosaur extinction. If you think a spray bottle of mint water will stop them forever, you’re kidding yourself. But you can make your house a lot less inviting. Seal the gaps, clean the clutter, and stop leaving crumbs for their prey.
And when you still find one in your bathtub at 7 AM, remember: you’re not alone. I just found a baby spider in my toothbrush cup yesterday. I gave it a stern talking-to and relocated it to the garden. It eyed me with what I swear was attitude. We’re in this together. Keep your caulk gun ready and your sense of humor closer.