Because she's not maniacally organised
She likes order but it's not an internal force that makes her keep everything in order. It's more of a habit that she had to work out to function among people who take your eidetic memory for granted.
Though, I'm sure she could help Gul Berat govern the mess on his desk better
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew