Ask HN: What interesting idea/problem worth solving you hiding for long time?

I get lot of thoughts through out the day. And I keep notes about interesting ideas or problem worth solving. I like to think maybe one day I work on them and start business something. But now I think I am wasting ideas by keeping my them secret. Whom am I kidding? One day one day I will work- that never comes. So now onwards, I am going to put my ideas in public. So that other "Action oriented (talk less) people" here on HN may work on it rather me sitting on it and make world better place- small improvements. I hope other people will do the same. I am not interested in credit or money. Idea came to me from universe and I want to put it back to universe :)

My idea:

charging table cloth that will sit on your work table and charge everything that will be put on it- exactly like wireless charger. Mobile, laptop, earplug, fitness tracker - anything with bottom. No more charging cables or something.