By the way, you must never, ever, never mention to a woman that there has been another of her sex on the premises. I at one time thought like you, that indication of previous co-habitation might lead to confident thoughts on the part of those following, so I kept a number of things that had been left behind, a shower cap, a half-bottle of Mydol, a toothbrush or two and, during one particularly good summer, a two shortie bathrobes, one blue and one kind of an sea-green. (There was a hot tub nearby.)
The reaction of the women discovering these little items was uniform. It was as if they had smelled something very dead in the room. There were arched eyebrows and pouts. Obviously there had been some violation of territory, but at first I was too dense or too full of ganga to notice. What finally brought to it to my attention was a half-screaming fit over a couple of little rings that had been left in a saucer in the kitchen. The question I could not answer was whose they were?? I tried to explain that I hadn't asked the lady's name. I also could not answer the second question which was what the hell was the name of the half-screamer???
So I scoured the apartment of any and all remnants of any previous visitors and from then always acted as if this was the first time I had ever permitted anyone to ever come home with me.
That made for some very nice moments.......
Joe