Les - aeration will help - ie getting them out of the box. Have you seen those tiered hanging wire basket things?
Hmmm.....how to explain them? Imagine 3 hanging baskets - small medium and large, held together by a series of small chains that all join on a central hoop, that you would hang from the ceiling/beam. Small basket drops down to a medium basket beneath, drops down to a larger basket. When collapsed, they would sit inside each other.
Anyhoo - air circulation will keep mold at bay longer. Popping the oranges into any container that allows air flow up and through.
I can't bear to put my oranges in the fridge, but I don't live in steamy climes. Citrus adores sunlight, and they can be kept in the sun quite happily, if you are eating your way through them quite regularly.
S is looking mighty gorgeous in that photo..... to infinity & beyond!
