To learn the basics of the Python Bottle framework, I cobbled together a simple web app for tracking items in a bag. Aptly (and somewhat unimaginatively) named What’s in My Bag (or wimb), the app can be used to maintain a list of stuff in your bag. The app is designed primarily for photographers who usually have a lot of photographic paraphernalia in their bags.
The app is rather bare-bones, but it does the job. The only serious caveat is that it doesn’t offer any user access control mechanism, which means that you probably would want to run it on a local network only. I wrote wimb for my personal entertainment, but if you find it useful, feel free to deploy it on your own machine or server. Head to the project’s GitHub repository for the source code and installation instructions.