Also to add... When you get your promo pack together, and are passing it out to the local clubs, remember the guy who listens to them (usually the club owner or manager) is only going to give you about a 15 second listen, so put your best stuff first.. also don't think you are going to instantly pack in the clubs and get booked on a weekend date... for a VERY long time, you will be playing on like Wednesday night and be the opening slot for the Karaoke Contest. Make sure to be friendly to everyone that has anything to you being there to play... Definitely be friends with the guy running your lights and sound, you know like buy him a sandwich or shoot him a tip to show your appreciation on top of what you are probably having to pay him... This is the guy who can make you sound STELLAR, or make you sound like $hit... I have a buddy who is in a pretty popular band who one night insisted on pissing off the soundman when he asked him to turn his amp down a little... that whole night all the bands sounded awesome then when they "The Headlining Band" came on... well let's just say you could have farted into the mic and it would have sounded better... all the levels were f*cked, eq? Flat as a board... Hell you could barely hear the singer... Very quickly a fully packed house dwindled down to about 1/4 capacity... So in closing, the club pecking order is:

Club Owner
Sound man
Cute Bartender Chick
Cute Bartender Chick
Fans
Oh did I forget to mention the Cute Bartender Chick?