For the "Bars are a great place" part, take it from an ex doorman, PICK YOUR BAR! Its basically picking what you want to eat at the food court. For exemple, I worked in one we called "the last chance", cos the booze was cheap and the girls... too. So around 2am the guys who weren't getting any in other places showed up at the door (no cover charge at 2am either, so some cheap pricks in there as well). You ever seen hyenas fighting over a dead carcass? (Thats what some of the girls looked like at that point).
Anyways, you ain't always getting quality out there, same goes for chicks too. I "met" really great girls in clubs, and some of... lesser... value.
So rule of thumb, you get what you pay for, easy pickin usualy mean she as been easy pickin for a while, wear two condoms. Though to get? Uses words with more than two sylables? Doesn't drool as she speaks? Harder for you maybe, but there might be a "next date".