I use an electric pencil sharpener myself as this was suggested by Gina K. at her forum at Stamp TV. I specifically ordered a panasonic model # KP-380. I did my homework online to find reviews on the best ones and then ordered it so I would have it when my new pencils arrived. Works great! It does say on the sheet I got from Prismacolor co. that it might clog the inner workings of the pencil sharpener (or dull the blades) but, that you can simply sharpen a graphite leaded pencil and it will assist in lubricating the gears again and also to periodically clean the inside of the sharpener out with a small brush. HTH!
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