Whenever I buy fruit that needs more ripening time (avocados, mangos, etc.), I try to let the fruit hang out (literally) instead of resting on a plate. This avoids the development of soft spots which, if you forget to turn the fruit daily, can turn bad quickly.
The avocados I buy come in a mesh bag, which makes for easy hanging. I save old bags to use for other fruit, such as the mango in the photo.