Lots of interesting little tips on Vegan with A Vengeance book by Isa Chandra Moskowitz. I tried her tips - to make sure you always have fresh muffins, freeze half a batch. Pour the batter into paper cupake liners, then put them in the freezer. Once frozen, store in tightly sealed plastic containers and bake one in a muffin tin, adding an extra 8-10 minutes, whenever you want a muffin, no need to thaw.
I experiment with my yughurt banana muffin and it works!
Below is photo before and after baking.