I know sometimes I get comfortable brewing the same staples over and over, and I often get caught not prepared with the proper beers for the season! Attached is a calendar from Northern Brewer reminding you what can brew throughout the year so your beers will be ready for the appropriate season (also what you can be drinking).
This is similar to the wheel that Steven made for Stylin' Sundays (though much less visually appealing). Speaking of Steven ... when can I order a Stylin' Sundays shirt?!
Hopefully you'll find it useful!