Ich mag halt alles geordnet.
Was bedeutet "halt"?
"halt" in this case doesn't mean "stop".
You could translate this to "I just like when everything's in order."
The english "just" is the only translation that makes sense for me in thise case.
Sidenote: another word like this is the german "eben". Just like "halt" it has another meaning (flat, even or level) but is synonymous to "halt". e.g. Ich mag eben Alles geordnet.