Airport and station taxi overcharging
Tashkent, Samarkand, BukharaCommonUnofficial drivers quote foreigners many times the local fare. Uzbekistan has an informal shared-taxi culture where any car may stop for you, which makes the going rate hard to judge.
How to avoid it: Use the Yandex Go app, which works nationwide and prices in advance. Otherwise ask your accommodation what a fare should cost and agree it before getting in.