Mosiso via Amazon takes 30% off select plastic cases for Apple Macbook Air laptops, one bundled with a keyboard cover and a screen protector, via coupon code "O8EI3WPT", as listed below. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs about $8.) Coupon ends April 3. The deals, with prices after coupon:

• Mosiso 13" Plastic Case Bundle for Apple Macbook Air in solid colors for $9.79
• Mosiso 13" Plastic Case Bundle for Apple Macbook Air in patterned colors for $11.19
• Mosiso 13" PU Leather Book Folio Stand for Apple Macbook Air (Brown pictured) for $12.59

Of note, please check the product page to make sure that the case is designed to fit your system.