There are only really three major routes I can take from work to home. There are two options for one of them but they hardly make a difference. one extra mile and no gravel or gravel and a little shorter. The other two routes share the last 5 miles as well. My favorite route is the middle one; better roads, less traffic, flatter, about 15 miles, which IMO is a perfect distance.
When my company moves next year, I'll be down to pretty much one route that makes any sense at all and it'll be 26 miles.
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Work: the 8 hours that separates bike rides.