I took out a glass of iced lemonade, and a twenty, not quite sure if he wanted a tip, esp. given that it's 85 degrees out, which is not the kind of weather I'd want to be breaking down boxes in. Temo took the lemonade and slightly indignantly (but with a laugh), refused the money, explaining to me that I was a nice person and he was happy to help out a nice person. (A nice person who clearly is disastrously incapable of maintaining a clean garage, although he didn't say that out loud.) All of which has made me feel slightly abashed, but also still wishing I had homemade cookies of some kind to press on him.
I feel that I must note that I have a well-established relationship with Temo at this point, given how long he worked on our house renovation (almost two years!), and I did knit him a very nice cap that winter. So I'm not completely hopeless on the thank-you gift front. I was just not quite sure if our relationship had shifted, given that it's been some months since he's done any work over here. I guess not. :-)
P.S. I am damn well going to make some homemade cookies before I return my neighbor's lawnmower. I asked him if they liked sweets, and he laughed, and said of course they like sweets. The children will be pleased.