This one, in particular, I find hard to confront. There are so many places where the color changes ever so subtly, and lines that need to be super-straight. So I end putting it off for days, weeks, months at a time. However, today's dusting-it-off-and-working-on-it session went relatively well.
Starbucks (Homage to Hopper), work in progress (click on image for larger view)