Help! My electric pencil sharper, that I paid $50 for at Staples 2 years ago, is croaking. It's a Staples brand, heavy use. Does anyone have a suggestion for a new one? I noticed Staples in our area doesn't have the same one, but they have a front sharpener and a top sharpener that are both heavy use. (PS...I was given a hand crank that drives me batty and is put away for emergency purposes. It takes too long and kids love it too much.) Any suggestions?