What should I do with my question if I found out that it is invalid?
For example, I have posted a question whining that something is not working, only to find out half an hour later that I was looking at the completely wrong place.
Should I simply delete the question, flag it as invalid, or something else?
[Edit] Why I am asking is because I actually consider parts of the question to be informative (at least for my own future reference). So I thought deleting it would not be the best option of all.