There is three places worth visiting in Bangkok. Nana Plaza, Soi Cowboy and one place which doesn’t have a name.
Nana and Cowboy strip clubs / go go places are very expensive, if comparing to other parts of thailand. One night I got a 5 000 baht bill, without even drinking my self anything. So be careful out there. Long time for a go go girl is about 4 000 baht plus bar fine 1 500 baht.
I think there is more prettier girls in the Cowboy. I suggest not wasting your time on the streets. If you want to get a cheap and beautiful lady, you should ask a taxi driver or a tuktuk driver to get you some place where is many girls sitting on the line.
There is easily couple hundreds of girls and you can order one drink and walk by every girl and choose the girl you like. It costs you 2 000 baht for a long time. If they (= the bar) want more, don’t pay, you can always pay for the girl later more. Normally the girl gets 1 000 baht and the bar 1 000 baht. So if you want to be again with the same girl, you should ask her number.
Normal taxis are cheap in bangkok. You should always ask them to use the meter. You can get easily around almost everywhere under 50 baht, if you are staying in good location. One of the best locations in Bangkok is the Muse Hotel, it’s luxury hotel with very friendly staff. One night may cost anything from 6 000 baht, but it is definitely worth it. They have small gym, pool, bar etc, but the best part is that the rooms and the hotel interior looks fucking great. You do not have to pay anything to bring visitors to the hotel, but I suggest that you ask for visitors ID to be leaved to the lobby, for just your own safety.
If you want drugs or other questionable / illegal things, just ask those from the guys in the main road, who are trying to get you to see some girls or other things. It’s easy to have crazy time in Bangkok, but remember to be careful, do not piss of local people and remember to pay to the police a very large amount of cash if you get busted.