neatShe keeps her side of the room fairly neat, but her roommate's a bit of a slob.
tidyHe keeps the shed organized and tidy.
orderlyThe books were arranged into three orderly stacks.
well keptThe cottage was old but well kept.
trimIt was a trim little home, with a tidy garden in the back.
in good orderThere was no sign of a robbery, as everything in the home was in good order.
be in apple-pie orderUKold-fashionedBefore she left on holiday, she made sure the house was in apple-pie order.
shipshapeinformalWe got the house shipshape in anticipation of her visit.
unclutteredSparse and uncluttered kitchens are the hot new thing this season.