Where have you learned "the useful" programming ?
I mean, programming math challenges and this stuff is really fun and makes you think about things differently.
But it's not useful(It very much is, I just mean that the output programs aren't). Where did you learn useful programming ? Like creating GUI apps and stuff like that.

I wrote “viewers” back in the day. Take a public database (like from the US CDC or Census) and write a GUI application that allows you to browse, search, alter, or create data. You will learn:
Application to Database CRUD calls
Data presentation

Throw in separate areas of concern (GUI, business, database aka 3-Tier Architecture) and you have a “simple” example of how enterprise software is written.

@JonnyCodewalker That's on the schedule:) I just don't wanna waste time meanwhile

Scratching my own itches. Writing applications that I missed and learning how painful it is to use them after a month.