Word of mouth is everything in this biz. Work well with the sponsors, respect the administrators by playing all radio edits, stay in touch with the latest hits, and rock the gym and you'll have more gigs than you can deal with.
I actually just got an email from a school that was desperate for a good DJ for thier homecoming dance in three weeks. I was already booked that friday night (5-7 outdoor gig for elementary school) but thier dance didn't start until 9:00. So I told them I would take the day off from my day job (teacher) set up my big rig (20 foot global truss, two 9X12 rear projection fast folds.....) at noon at their HS, drive back and work the smaller event with my #2 rig, drive the hour back and work the dance.
They are so happy with me going the extra mile that they are already talking prom ($1300) a much bigger payday.
It pays to be the nice guy sometimes.
Good job on the booking Zman.