To be honest, any birthday greeting written in a card or meaningful message is a wonderful way to honor someone important. However, if you want to take the celebrations to the next level and throw a party at home, there are a plethora of themes to choose from. With a superhero or unicorn-themed party for kids, you can tap into the more mystical components. Backyard olympics (think cornhole or big Jenga) or a game night are activities that no 13-year-old will dismiss. Consider a huge BBQ, a sparkling breakfast, a quiet fall-themed gathering, or even a tropical luau for grownups. These birthday party ideas can even be reasonably inexpensive if you use your imagination and rely on stuff you already own, as well as a few basic crafty DIY projects to tie everything together. We also have suggestions to help you create a tiny, yet utterly wonderful, entirely hands-off event if you truly want to just sit back and enjoy the day.