Stop in frequently since most shops have a constant turnover of merchandise.
Talk to sales staff and find out which days new merchandise is put out for sale. That way, you'll get the first opportunity to get the best merchandise. Many Goodwills put out new merchandise daily, so serious shoppers may want to stop in on a regular basis to find out what's new.
Introduce yourself to the staff, and ask them about items you're looking for or what they would suggest as a good buy. Establish yourself as a regular customer and the staff may even call you to let you know when certain items arrive in the store.
Find out store policies on markdowns, holds and the methods of payment your Goodwill accepts. If policies aren't posted, ask the sales staff about them.

To find out more about the programs and services provided by your local Goodwill, visit the Goodwill Locator.

At Goodwill's original online auction you can find great deals on name brand goods and one-of-a-kind collectibles.

Goodwill's "real-world" classroom in New Jersey trains grocery store cashiers.