Early deals on tech and select Amazon devices kicked off June 21 and discounts are going on until the official Prime Days begin.

Try Amazon Prime Don't pay $139 for Amazon Prime just for Prime Day. Sign up for a free 30-day Prime trial and Prime Day before committing.

Make a Shopping List Check that list during Prime Day to make sure the items in your cart are good spending decisions instead of a bunch of stuff you’ll regret buying in a week.

Get a $10 Credit With the Amazon Prime Stampcard The company’s new Amazon Prime Stampcard requires you to complete four activities to snag the $10 credit.

Check Out Prime Coupons Keep an eye on the Prime Member Coupons page to get the scoop on additional deals on everyday products from clothing and fashion to tools and camping gear in the days leading up to Prime Day.

Compare Historical Prices to Get the Best Deal Be a savvy shopper and use a price tracker like CamelCamelCamel to show you the historical price of an item on Amazon over time.

. Follow Amazon on Social Media The company posts frequent Twitter and Facebook updates about Prime Day and related contests, so stay tuned on July 12 and 13 to catch any extra-special or surprise deals.

You can even download the CamelCamelCamel browser extension and check it while you shop Amazon Prime Day to see a chart of past prices.