Or you could do what I'm doing and take some classes online. Try and find something that will benefit you at work - but not something that will threaten your boss - and try and show them how it will benefit them also. Explain how you have some free time because of the seasonal nature of your job - which they should understand. It's possible that they will be more than happy to let you further your education while at work. It could be their "contribution" to let you do it at work (instead of actually reimbursing you for tuition). It's worth a try and they benefit because they keep a great employee and you get to further your education.

Good luck!