I suppose I am the irresponsible one. I put the used blade in the new blade wrapper and then break it in half. I have been doing this for years without consequence. My opinion if the blade is no longer sharp enough to cut whiskers it's not sharp enough to cause major damage. I have suffered worse cuts from cans, exposed nails and paper. Additionally I believe the sanitation workers are expecting worse hazards than a spent DE blade. Utility knife blades I usually toss in a 20 ounce bottle before discarding.
Awesome to see variety of solutions to a simple everyday problem.
I just ate the last cherry from this, and I nominate it for the job.
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I'm guessing wrap them in TP and toss or put them in a can or jar for future bulk disposal are common solutions?
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This is my blade bank. I found it at the dollar store for, duh, $1. It's about 8" high and will take quite a few years to fill.