Getty Images Having just thrown a kid's birthday party, I know what the final cost can look like and it can be scary! From decorations to the entertainment, things can get a little out of hand if you're not careful. In order to save you some headaches and some money, learn from my costly mistakes. Here are five tips that will guarantee savings at your next birthday party: Budget: Who likes working with a budget? Maybe no one, but in the real world, we have real jobs, real expenses and real responsibilities. If you were to save $30 every month for a year, you would have a $360 budget to work with. If you saved $40 a month, you would have $480. For many working families, forking out $360 to $480 for a party at the last minute is way too much. By saving ahead, you can have a real budget to work with. Plus, you don't have to spend all of it.