Congrats on the braces! Got mine later in life as well - totally worth it. I used a Water Pick to do the major flushing out of food, and supplemented with Superfloss and threaders. I also got more cleanings like indysteel - they used a baking soda 'sand blaster' to clean my teeth.

I also found out that I was allergic to the latex in the rubber bands, so my orthodontist switched me to latex-free. Highly recommend using lots of wax to keep the sides of your mouth from getting scarred.