Yeah. Back roads are basically a free range extender.. plus they're more fun to ride along.
My longest day looks something like this, roughly 70 miles total:
0530 - 0630 20 mile round trip, early run with a friend
0630 - 0830 prep for work, etc
0830 - 1830 12 miles to work, sometimes go out for lunch or errands. No charging at work unfortunately.
1830 - 1900 18 miles to friend's house
1900 - 2230 TV with friends (Game of Thrones and Dr. Who presently
2230 - 2300 20 miles to home
I have three options if I have unexpected errands or can't charge in the morning, in order of descending preference:
1. Take a slower route. My normal route is 45+ mph roads .. and sometimes I ride a bit faster. There's only maybe 10 miles of that 70 where I have to stay on 50+ mph roadways.
2. Recharge at my friend's place. I typically see 8 miles per bar on the ride home, and I charge at 1.1 bars/hour. 3.5 hours of charging gets me 31 miles of charge, so getting home should never be a problem.
3. Go back home between work and TV with friends and pick up a gas vehicle. Doubt I'll need to do this very often, maybe once a year.