Some years ago, Jane and I spent a weekend at a campsite near Great Malvern. She had intended to take her Roberts Roughstuff, as it's a purpose-built tourer with racks & stuff, but due to some sort of mishap in her bike storage area at home, it was hors concours (buckled wheel, I think). She took her Sabbath titanium bike with no racks at all.
I was in awe of the way she succeeded in fitting everything she needed onto, into and around a single Carradice saddlebag. Tent, mat, sleeping bag, spare clothes, tools, trangia, meths, and a bit of food. Probably something else that I have forgotten. It was a joy to watch a real expert in action.