I end up with a lot of these courtesy of husband's business/first-class long haul flights and luxury hotels for work.
I keep anything we will use: razors, toothbrushes, toothpaste.
The hand cream goes to work with me.
The shaving cream, airline PJs (Qantas pyjamas are a big thing here), eye masks, socks, etc, go to whichever friend wants or needs them.
The shampoo, conditioner, body wash and bar soap go to a charity which accepts miniatures for the homeless.
The brushes, combs and fragrance go to The Beauty Bank, a Sydney based charity which collects unused toiletries for women escaping domestic violence.
I've developed a easy come, easy go attitude with these things. As long as they are being used and not going to landfill, I'm happy.