On the way to work I mainly use the same route, although depending on weather and available time I do change the first 1/3rd and the last 1/3rd of the route occasionally. Coming home I'm more likely to change route. I have many options which are 80% off-road work, through country parks etc.. I can double my mileage home and often do but haven't recently due to rubbish weather. The middle 1/3rd section is always the same for me though, not a great road as it's a single track road with poor visibility around bends and cars don't slow down much... there are plenty of horses to see and I usually see guys race/train some greyhounds which is a sight to see, very fast!