Idea thread, share your product ideas here

This thread is meant for sharing product ideas.

As was based on this thread asking if people were up for an idea sharing thread. https://news.ycombinator.com/item?id=12231851 As per the dang's comment, I've decidedly /not/ made this an idea "sunday" thread. The community appears to be interested in this thread, so I'll open it even though dang is against it (sorry mate ;)

So, go share your ideas. Previous discussions: https://hn.algolia.com/?query=idea%20sunday&sort=byPopularity&prefix&page=0&dateRange=all&type=story