The moment I got home after recieving the Clasroom Friendly Sharpener through eBay and tested it out on a few pencils I started to consider ordering another one. Because it is the only sharpener I want to use.
I did not do that. But instead I found a pen case or pouch at home and sharpened 24 pencils on both ends and started to carry that. The pouch I found at home have since been replaced by one from Nock. But the same principle stands.
Instead of doing what I did in the beginning, where I used up on pencil before moving on to the next, I now carry a lot of sharp pencils. And I use one after another and then re-sharpen them when I get home. Not usually every single day, but 2-3 times a week. But I usually stick to one pencil and re-sharpen it as often as I need when I am at home.
I still carry the KUM Masterpiece though, just in case, but I have never needed it.