I have hundreds of small pen and watercolour sketches in upwards of 30-40 sketch books. Here are just a few from France. Any of these could be developed into full pictures if anybody wished.
I find that sketches are more fun revisiting than photographs and I use them as the basis for more formal pictures back in my studio. I make notes on the pad to remind me of the scene, where it was, the colours in it, etc.
Mandelieu Tourette-s-Loup Mandelieu Castle
Beaune Nyons Chaumont
Boules. Waiting Turn Fayence Souillac
Rocamadour Troyes Market at Troyes
Brantes