This is not a sexy product, but it's a useful one. The FoodSaver Wide-Mouth Jar Sealer allows you to easily vacuum seal wide-mouth standard size mason jars and lids.
The FoodSaver creates an air-tight seal that keeps food fresh up to 5x longer than other storage methods like zipper bags or plastic containers. It's BPA-free and safe for the dishwasher. And over 3,000 Amazon customers giving it a 4.5 out of 5 stars is a nice endorsement too.