One of the coolest baking tips ever... Tried and true... If you need to soften butter quickly but don't want to melt it.... Put boiling hot water in a glass to heat the glass. Dump the water out and flip it over your stick of butter. In a few minutes it will be soft to use!
Eggs preserved with mineral oil are said to store up to 9 months in a basement. Veggie oil or olive oil is said to work in a pinch, but can go rancid they say. If collected early, goose eggs and quail eggs have also been known to be gathered in replace of chicken eggs. (Just FYI)