I found a superb cork screw/bottle opener/pen knife in my suitcase following a stay at a 5 Star hotel in Cyprus last week. My wife also found an awful lot of toiletries in her bag.
I stayed in Blackpool once, the hotel was so rough i caught the landlady knicking towels off the guests........mind you i shouldn't complain, we were allowed to eat as many mushrooms as we liked....off the back of the bog door. (clean chubby brown jokes)
If you're staying in a posh hotel where they have bath robes, don't nick the ones from your room they will eventually add them to your credit card. Wait until the maid is doing the rooms the next morning & pinch one off the cart. I believe this works although I've never ever done it myself. O Tea bags, coffee satchels, sugar are all fair game as far as I'm concerned.
When we got married at Alton towers We had the "big suite" we had bath robes champagne all the soaps and everything we had so much I had to get me mum to take half of it as we was going off to Mexico after and I had all that stuff to borrow