First, never tell a salesperson your maximum budget. Your inclination may be to set a price limit, but once they know your budget, salespeople will try to push products on the high end of your range, and possibly beyond. Instead, offer a general price range without getting into specifics.
Next, if you're desperate for a new item -- whether it be a new computer, phone or other big ticket item -- don't disclose how badly you need it. Knowing the necessity of a purchase can lead a salesperson to hold back on giving you the best deal.
When it comes to food, warehouse clubs may not be your best bet. You'll get more, but could potentially save less. According to the Natural Resources Defense Council, buying in bulk is the leading cause of food waste in America, costing a family of four up to $2,275 per year. So, keep spending down by buying items that are used often and don't spoil quickly.
Before you head to the stores, keep these common shopping mistakes in mind. You'll catch more deals and end up throwing away less money.