Setting A Budget
When you invent, you know that sometimes costs can hit you out of nowhere. Setting a budget no matter what you venture into can be a really great idea. Setting a budget will help you to keep your costs at a minimum by helping you stick to your original plan and not wavering. It can also help you to make more cost effective choices when you must decide whether or not to buy a more expensive item or a less expensive one.
Realistically, when inventing it can be tough to keep to the budget you set. But if you at least try you may end up being surprised at how much it can help you to not overspend.