Sketching during the short waits

I greatly admire the artist James Gurney, his blog site is Gurney's Journey which has been going since 2007.  One of the things he does is carry a sketchbook with him and he is constantly sketching.  I try to do something similar.  Above are two examples, one is the condiments from Famous Dave's restaurant and the bottom is a water cooler in a Doctor's office.  Both are pretty small but were enjoyable and a good way to spend the waiting time for food and the Doc.