do your doctor up your picks?

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Do you doctor up your picks? Sharpen them maybe by rubbing them across the carpet or with an emery board, nail filer or sandpaper? How about gluing a bit of sandpaper or porous material on the grip end on one or both sides for a more firm hold? I use nothing but Fender Guitar Picks, 351 Classic Celluloid, mostly Heavies, but all other gauges as well, depending on the job at end, with my Tele Thinline. Some people swear by Delrins but they just feel and look so “plasticky?” Also, what do you pay for your picks? fenderguitarpicks.com has mine at $4.97 US, free shipping. per dozen. Do you generally buy by the dozen? More? Less?