12Pick A Theme
Believe it or not, it can actually be cheaper to pick a theme for a party. Typically if the theme is chosen by something that interests your kid, you may already have objects you can use as decorations for the event. Then from there, it is much easier to pick
colors of balloons, streamers, table cloths, and so on without having to buy actual themed decorations from expensive party stores.
The beauty of picking a theme is it can inspire other party essentials like games, food, and birthday cakes. Depending on how crafty you are there are thousands of DIY ideas on the internet that don't cost a pretty penny to make.