I just found a fun website: Sprout Robot! You go on to the website and type in your zip code and it will tell you when to plant and what to plant!
This is a fantastic resource for planting! You can purchase a package of seeds more cheaply than starter plants at the nursery. However, if you have a "black thumb" or you don't think you can keep up with seedlings, then just use the website to learn when to transfer your plants outside.
You don't have to start your seeds in special, expensive containers. Anything will do- last year I cut down "Simply Orange" orange juice containers and started corn in those! It worked out perfectly well and was no extra cost for me, since I wanted the orange juice anyway.
By the way- Sprout Robot will also give you information on HOW to plant your seeds and the best way to get your garden going! Exciting!