Grime and dust bunnies are sure-fire ways to send red flags flying, so get yourself some
mops
and get cleaning. Make sure that your floors and surfaces are sparkly clean and try to declutter packed rooms.
Don't put everything into a tucked-away cupboard, however. If you can, try to put the things that are not needed in the shed or the garage. People are likely to look inside cupboards when they visit and
seeing cupboards full of random stuff may raise suspicions.