I had an idea that never reached conception, maybe someone can take it and succeed.

A while back I had to go into the city and didn't know how many coins I needed for parking. I thought I took enough until I saw it was $4.5 an hour. I considered creating a website/app package where users could see where they're going and the parking details associated i.e. ticket parking, free until 8pm, clearway zone etc.

I sadly lack the time and more importantly the technical know how to do it though.