Yeah! A couple of years ago I thought JavaScript was hard, and I couldn't figure out how to do what I wanted. Somebody posted a teeny tiny code editor here on Hacker News and seeing the source code sparked something, and now I'm writing and releasing my own HTML apps and tools that help me and others.
I listed these here (with the source) to show how small and how LITTLE code you need. Each of these files are single-file apps - icon included! Many of these I either started or created on my iPad, showing that building HTML apps can be so simple that you can execute on the device itself.
I'm just putting it here hoping it can help somebody else. If that's no you, that's fine - but if it is I'm glad I took the time to write them out :)