Being the well heeled bachelor that I am occasionally I will have an guest of the opposite sex. As part of being prepared for theese visitors, I like to keep an assortment of items on hand they may require during their stay.
So when I am going through the grocery store buying women's razors and shaving cream and the cashier looks at me, I just give him/her a little eyebrow raise along with a head nod like "S'up?" because you know, they know.