Best Buy discounts a selection of phones, laptops, TVs, cameras, and more during its 3-Day Sale. Plus, most items receive free shipping. (Opt for in-store pickup for items under $35 to avoid shipping charges.) Deal ends March 22. A few notable discounts: 70" TVs from $800 up to 30% off appliance top deals up to $450 off select cell phones up to $300 off select iPads