If you're the type of person who gets fidgety while riding in the passenger seat of a car for prolonged periods of, say, 5-10 minutes, you may need to work with your hands to modulate your nervous energy. 

Crocheting bird feeders out of 40-pound test fishing line is satisfying and productive. Whittling is an effective way to build up your supply of tinder for the winter, and the pile of wood shavings under your feet will keep your toes warm on long winter drives.

Or you can turn to your smartphone for solace and revel in arty/crafty/hacky/buildy project tutorials and start plotting your next DIY attempt.  

If you're naturally frugal with a sideways imagination you might enjoy the incredible range of human ingenuity I've collected in my Upcycling board on Pinterest.  

Who wouldn't want to make a combination candle/TP holder from scrap lumber and steel pipe?

Or make a bench from an old bed headboard/footboard...

Or build a side table out of cut-offs...

Is there any human who doesn't like to make new stuff out of old stuff?  I haven't met one yet.