Paint your pots with blackboard paint so you can identify what's in them!
Plant alliums such as the "allium fistulosum" or Welsh Onion beside roses to keep away aphids.
If you want to go a step further and avoid insects in general you should plant some lemon scented foliage in your garden. Lemon scented Thyme will kick some serious butt as most insects can't stand the smell.
And for those of you who have no space to garden Anthropologie has the Micro Greens Grow Box which is small enough to be placed on a window sill and comes with two full crops of seeds!