So next month i finally go to Thailand (getting excited),
landing at BKK and going to Ayutthaya first.
so finally i am thinking of the practical (not 18+) questions.

As the title says, where can i get a good exchange rate ? (i plan to take cash with me.)
Also what SIM card/Operator do you recommend ? (i plan to use the internet, not so much calling)
I read there is no Uber in Thailand, which other do you recommend ?

(I hear the Airport gives not good exchange rate, but kind of need money dont i...
love to hear your suggestions)

thanks