The longer the trip the more flexible it is for me, shorter trips require me to stay on some type of schedule so I can see what I planned on seeing. I usually average 300 miles a day on any given road trip, some days are longer while others are shorter. I've wandered about a bit but I actually like having some type of plan for the most part. The one time I did really wander it was supoosed to be a 5-6 day trip and I got back 16 days later. It's hard to set off for a week with no goals you have to get back don't you?
In one year I rode 18,589 miles on an island that's 72 miles long. That's 50 miles a day everyday for 365 days. I think I'll go home now. 76k miles and still riding http://travelwithe.com/blogengine.net/