LOVE! Keep the kiddos stimulated & engaged while they're in the side lines with snacks, toys, and other comfort measures. Spoil them rotten for your 2 hour photo session! You won't regret it when you see the variety.
Remember to ask yourself...will the cool/artsy/textured background MAKE SENSE when others see the photo? "Why is she all dressed up, leaning on a wall, with stairs leading to a plywood door of an underground bikers' club?"