I don't commute anymore, I'm retired. But I always wore a helmet when I was riding to/from work. And I always wear one on daily rides, organized rides, or just a quick spin around the block after a repair or adjustment to the bike.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.