Hey, It's only July!
You may think that this is high summer, but that doesn't mean that we don't have three-plus months of growing season ahead of us still. If you haven't put out a planter or watered a windowbox, get going!
Ikea has a great outdoor gardening section and we like their pots and planters particularly. They are cheap, durable enough to play a good supporting role to your plants and come in LOTS of different sizes.
While the store will carry more, here's a roundup of what's online. MGR