One towel from Hilton Hotel Salalah, and one from Hilton Hotel Kuwait.
Nice towels they were too, still using one from kuwait eight years later. I did pay for them in the long run, three/four Rials or Dinars* a beer - and there was a lot of beer.
Piddley little bottles of sh!te combined shower gel/shampoo has never taken my fancy! That's not to say I don't shower or wash hair, I do, I do!
Stayed in a great deal of other hotels, and for extended durations too, but never took anything else.
Ironically - I believe the one from Oman was stolen from me!