Saving files on the desktop is like saying I don’t later.
Which we all know is a lie.
We all know this moment where you have to just save the current file asap. To prevent that this file from landing on the desktop, just save it after you created it.
The same accounts for the download folder.
In Google Chrome, it is possible to activate an option, so that the browser asks you every time when to save it.
You can find this option under “Settings” scroll down and click on “Advanced” and under “Downloads” you can find “Ask where to save each file before downloading” which you can activate.