Comment by fuzztester

Related 'Ask HN' that I posted about 3 weeks ago, and that got over 780 comments, with many apps mentioned, which was quite unexpected, but fun:

Ask HN: What apps have you created for your own use?

https://news.ycombinator.com/item?id=38623695

Still haven't checked all the replies with links to their apps, which many gave, but plan to.