Welcome to On Sale at FOX Business, where we look at cool deals and insane bargains.

Looking for great back-to-school deals? Check out these retailers for discounts on apparel, accessories, school supplies and tech. And while you’re at it, don’t forget to help teachers get new books for their students.

Uniform Advantage

Old Navy (GPS) has school uniforms on sale for as low as $5 for polos and $10 for khaki pants. 

The retailer is also selling backpacks for $9, and select dresses, tops and hoodies are also $5. Graphic tees and shorts are $8.

The back to school sale is going on now through Aug. 14. Parents can also get in on the discounts for a limited time, too. Take an extra 20% off select adult apparel now through Aug. 9 with the code ONSAVENOW.

Dollar Deals

Target (NYSE: TGT) is offering great deals to meet students' back-to-school needs. 

Get crayons, markers, pens and colored pencils for $1 or less, while Target’s signature brand has colored pencils, crayons and index cards for 50 cents. Shoppers can snag 70-page Mead notebooks for 99 cents. 

And of course you’ll need something to carry it all, so be sure to check out Jansport Supermax backpacks on sale for under $30. Visit Target.com for more.

Mac + $100

Apple (AAPL) is also getting in the back-to-school spirit with a special offer for students who buy a Mac. If you’re purchasing a Mac for school, you can get a $100 app store gift card. Buying an iPad or iPhone? Get a $50 gift card. Items must be purchased from the Apple Online Store for Education, a campus store authorized by Apple, or an Apple retail store.  

Online shoppers get free shipping on orders over $50.  

New Books

FirstBook is working to help teachers give new books to children in need. The company has donated millions of books and other educational tools to educators serving more than 30 million children from low-income households. 

FirstBook is working to fight illiteracy by distributing high-quality books provided through monetary donations and book drives. The company has also paired up with select retailers, including Build a Bear, which will donate a portion of the proceeds to FirstBook’s efforts. Make a monetary donation here or set up a virtual book drive here.

If you’re a teacher who serves low-income families, you can sign up to register for low-cost or fee books here now through Aug. 23.