Should I invest in a new toothbrush?

I have been using the same, trusty toothbrush for eighteen years now. True, many of the bristles have perished, but as a toothbrush it still works. However, this morning I suffered a tragic incident when the handle snapped. What should I do? Glue it together, or invest in a new toothbrush? The old one doesn't... show more I have been using the same, trusty toothbrush for eighteen years now. True, many of the bristles have perished, but as a toothbrush it still works. However, this morning I suffered a tragic incident when the handle snapped. What should I do? Glue it together, or invest in a new toothbrush? The old one doesn't have any sentimental value or anything, I just don't want to be making wild purchases.
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