How many miles have you towed in one day?

I find these threads often break on demographics. Retired and no kids tend to run shorter days, working and kids in school tend to run longer days because schedules are tighter. If we're taking our young kids to Disney/Zoo/Universal/etc in southern California, that's where we want to spend our limited vacation time. Not smelling the non-existent roses in the desolate Nevada desert on our way from and back to home in Idaho. In that scenario we're going to run hard there and back and maximize our time at the destination.