When you aren't really a fan of a team, but you need some team gear, DIY it.
Last year, I attended my first Cleveland Browns' tailgate and game. Since I'm not an NFL fan and definitely NOT a Browns' fan, I didn't have any gear. Luckily, I happened upon this orange wind-breaker at the Goodwill. Unluckily, I was unable to find a dog patch to sew onto it, so instead used transfer paper to iron on some Browns' logos and images. Luckily, the wind-breaker didn't melt, and this jacket has saved me from having to spend any real money on Browns' gear.
The power of DIY!