Getting everything and everyone together for portraits is a lot of work, so prepare ahead of time to be sure everyone is ready and at their best.
Get a good night's sleep, don't stay up really late the night before your portraits, it will show!
Eat a good meal prior to your session (but not in your outfits!) Hungry kids are never happy!
Be sure to wear colors that are good for your complexion and do not wash you out. You can go a little darker with your make-up but do not overdo, you don't want to look like a clown!
Make sure all of the outfits are chosen well in advance and are ready to go - ironed, clean, etc.
Af of course, have fun, relax, I promise we will get great pictures, threatening the kids only makes them act worse!