I almost always carry my camera, and I definitely always have my phone on me. If I can't take a quick snap of something then I feel very lost indeed. I also generally have a sketchbook with me even if I don't have my full watercolour set. What I don't generally have is the time to sketch on the spot, especially if we are in the middle of a walk somewhere. I've been dithering a bit over putting sketches from photos in my journal, because it sort of feels like I'm not doing it 'properly'. Thankfully, I seem to have got myself over that now and I am enjoying transferring some of my favourite photos into my sketchbook.
Like anything, it takes practice. I don't want my pieces to be photo-realistic because I don't have the time for that, but I guess I'm aiming for a certain amount of realism. Working in the comfort of home means I can also take the time to sketch in pencil first without adding ink, and I'm enjoying this new challenge.