When you walk down the aisle at the supermarket, where do you look?

"What it pays to do and where you'll save is if you look up or look down," said Carolyn Forte with Good Housekeeping magazine.

That's because the items at eye-level are the easiest to get to, so they tend to be the most expensive.

"Look up and you'll see some brands that you might not be familiar with but that might be worth trying and certainly could be less expensive. And look down because generally you'll find bigger sizes down there and it turns out that by unit price you actually may be saving some money."

Here are some other money-saving tips from the new book "Good Deals and Smart Steals."

- Don't be tempted to buy more than you need just because the sign says "While supplies last!" or "limit 10 per customer."

- Try to shop just once a week. It will save gas and limit your exposure to those expensive impulse buys.

- "You're going to look for things and you're going to look at things and things are going to jump out at you, impulse buys that will ultimately cost you more money."

- And don't go food shopping when you are hungry. Forte says you will definitely buy more.

"Everything looks good, so that's definitely a temptation you want to avoid," Forte said.