A covered and crimped reused k - cup. apparently it works better than buying the reusable ones!
Keurig K-Cups Best Prices Round-up! - Surviving The Stores™
Here are our picks for the best K-cups for your Keurig!
Green Mountain Breakfast Blend K-Cups
Little Known Secret to Get Cheap K-cups ~ Love your Keurig? Hate paying for k-cups? Here is a little known secret on how to get cheap k-cups so you can enjoy premium coffee every day.
A properly filled k - cup
Cleaned and dried k - cups
Using K-Cups for Seed Starters - the Grant life
Coffee K Cups - under the cabinet k-cup holder
Free Sample Starbucks K-Cups - My Frugal Adventures