your post is probably not very helpful to the OP, but...
worst thing you can ever do is fly to bangkok on a domestic carrier. i only go Korean Air and will never go back to AA or United. food rocks, and the stewardesses are CUTE CUTE CUTE. and actually nice and pleasant too. have seen several that i would pick out of any lineup (although i don't do lineups). get an aisle seat so you can check out the hostesses as they bend over serving food and drinks all down the plane. and you get a nice layover at the Korean airport. lotta good eye candy there.
only bad thing is my SO is along for ride too. but i do get some 'private' sightseeing time whenever we are there, if you know what i mean. and i think you do.
but to the OP... best soapy table shower in town right now is Cindy at Seventh Heaven. it can be downright life-changing. she is famous for it.
go during a slow time and you might spend the whole time in the shower (i often did back at Nan Cho in the all-inclusive VIP room with the built-in shower room). and you'll get way more than L1. and her b2b soapy massage is as good as any i've had in thailand. cost you a little more (140/200), but you do skip the airfare/hotel stuff. and no vacation time required.
JPdM