Sure, it's called a tailgate party, but your truck's tailgate is probably not large enough to hold all your friends and gear. Instead, invest in lightweight, portable folding chairs to ensure there's enough seating to go around. Show your team spirit with official NFL or NCAA chairs, or simply stick to team colors. While it may be tempting to choose the cheapest seats you can find, consider springing for a few chairs with built-in padding to maximize comfort. Superfans or frequent tailgaters should look for chairs with built-in coolers, drink holders, footrests or removable cushions that you can take into the stadium with you for comfortable seating throughout the game.
If the weather's nice, or you plan to have a lot of kids along for the party, be sure to pack a few thick blankets so guests can sit on the ground. Blankets also serve as an emergency seating option if your party ends up bigger than you planned.