Jane, it was my choice to ride and it was great. After all, I could have bailed at Faversham if I'd wanted to, but I would willingly have suffered ten times the pain just for the pleasure of your company, even though you were a bit parsimonious with the cherries!
I treat my GPS as a scrolling map, having plotted my desired route in beforehand using Bikehike. It means that you can glance down at the device and make a decision without having to stop to look at a real map. All the map reading has been done at home.
Helen told me you wanted to make your routes clickable like wot I do. For that you need a bit of webspace to store them on. Do you have such a commodity? For the princely sum of £1 a month you can get some on this very server and I would willingly show you how to transfer stuff across. Let's face it, if I can do it, it isn't hard.