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 9. A few notable discounts: Up to 30% off appliance top deals up to $400 off select cameras and camcorders $200 off select MacBook Airs $30 off select MSI monitors