I have 3 collections going :
1) women’s one piece swimsuits. I used to buy pretty much any one piece under the sun, but now I focus on racing/competition suits only. I’ve run out of storage space and my wife has been on my case as to why I need so many swimsuits. Last count (a few years back) was at least 115 suits. I bought a few more since then.
2) skirts. I can’t seem to get enough skirts. Like swimsuits, I don’t buy every skirt under the sun. I focus primarily on pencil skirts that are at or above the knee, and solid colours only.
3) perfume marketed towards women. I have 26 in my collection so far. If I get a few more I can spritz a different perfume for each day of the month.