I take my own shampoo and conditioner and moisturiser as i am particular about that, but shower gel/soap and toothpaste i just don't care about. What else would you take in a 'toiletry kit '?
Why the quotes around 'toiletry kit'? It's not an obscure invention of mine.
I take everything I'd need at home: shampoo, conditioner, face wash, body wash, bath puff, razor, moisturiser, deodorant, hair oil, hair spray, perfume, toothbrush, toothpaste, dental floss, etc. It's not difficult; it's permanently packed and ready to go.
I'd never choose to use someone else's toiletries, apart from my sister who uses pretty much the same stuff that I do. We have some friends who we stay with in the country quite a lot - she's very into 'organic' products, lots of mint and lavender and lemon .
That said, I wouldn't find it weird if someone wanted to use my products.