Remember those super nice gals at Greyslater who gave away a shampoo and conditioner bar set? Well, they are at it again with another awesome no-waste idea: the mason jar to go cup for your coffee or tea!

By now I'm sure you've seen the Cuppow. It's a special lid for a Mason jar that instantly turns it into a sippy cup. The trouble with toting your hot coffee in a glass jar is that the steamy liquid is going to turn the glass awfully hot. The super savvy ladies at Greyslater have a genius solution: add a cozy to keep your hands cool and help your coffee stay warmer for longer. You can find all the supplies you need to make a Mason jar coffee cup over at Greyslater! Already have a stash of Mason jars? You can just pick up the Cuppow and the cozy, but they carry glass Mason jars, if you need one.

Have you guys seen any cool to go cups lately? As you have probably figured out, I'm a little bit obsessed with to go mugs.