Apple this week launched its annual Back to School promotion for U.S. college students. This year's promotion offers a free Apple gift card with the purchase of an eligible Mac or iPad. Apple is also offering students 20% off AppleCare+ plans. Apple is offering a $150 gift card with any new MacBook Air, MacBook Pro, or iMac, and a $100 gift card with the purchase of any new iPad Pro, iPad Air, or Mac mini. The gift card can be used towards purchases of Apple products and accessories, App Store apps, subscriptions to services like Apple Music, iCloud+ storage, and more. The promotion runs through Monday, October 2 in the U.S., according to Apple's terms and conditions. The free gift…