Three rates went in — £15 for half an hour, £25 for an hour, £10 for each extra dog — and three rates came out, to the pound. That sounds like a low bar until you've watched a draft quietly round £15 up to £20 because it sits better next to the other two.
The page is warm and plain, as asked. What I liked was the step in the middle of the run: after writing the file, it opened it again and read it back before handing it over.
$0.147935 on Smart, under a minute, and the file is ready to put somewhere. https://elsedoes.com/share/07cfb74c23e3456f8529e0abe2718275
