That's actually a good way to approach travel days when you know you'll just be sitting in a vehicle and not doing much else -- wear yourself out with some good long bike rides.

The guy who's logged over 10K already commutes by bike, all year long, in all kinds of weather, and is pretty fearless when it comes to riding in traffic on bike-unfriendly roads. Then every weekend he does at least one century, sometimes a century and a half. The guy who's currently third in the state retired last year and is happy to spend it doing bike rides almost every day.

I know another retiree who averaged more than 10K every year for a long time. I think maybe last year he only had about 7K miles, because he had partial knee replacement at the start of the year. He's another one who rides almost every day, just because he loves it. Then there's the friend who surpassed 5000 miles last year even though she broke her femur in March.

Meanwhile I fell short of 2000 last year, though if two metrics had not been rained out in Sept and Oct I would have made it. And that's more than enough for me. Maybe if I wasn't working five days a week I would want to ride more often, but for now if I tried to do more I would get tired of it.