Single guys that are interested in women, things to buy for a potential female visitor:

• a variety of tampons and maxi pads
• two types of moisturizer that aren’t for jackin
• lady’s first razor, shaving cream, potentially a hand mirror
• an assortment of travel hygiene products: toothbrush in package, travel toothpaste, mouth and wash, travel size whatever
• decent towels, hand towels, bath mat, etc.
• a variety of otc drugs: acetaminophen, ibuprofen, excedrin, and first aid kit.

Make your home welcoming to a potential visitor, and stock it with things they may wish they had, or they need and may be shy to admit it.

I think that’s about $100