Since I've been doing the longer-term sketches in a Strathmore pad, I'm trying to do much looser, quicker sketches in my moleskine now, less than an hour. Knowing me this could all come to an end at any time, but for now I'm having fun.
a 15 minute sketch of the Koehler House on the campus of San Antonio College:
This view is from the window of the Subway restaurant on Broadway. Special appearance by my truck, on the right:
This one was getting close to the hour limit, but still within the timeframe. The Gunter Hotel (which deserves it's own larger, more detailed study):