During my lunch breaks I wander around the Collins Street area in Melbourne, drawing lane ways, people and street scenes. I really enjoy it, following my inspiration around for an hour.
I think all artists should reserve some sketchbook time - every day. It can be difficult finding time (believe me, I know!) but is well worth the investment, even if it was just a couple of minutes here and there.
Here are a collection of buildings I drew in my moleskine: