I'm on to 20th or so loaf of bread and I'm beginning to get some good results but there is still one problem that is present in all of my loaves of bread, no matter what ingredients go into them. They go stale after less than a day! I start a loaf in the morning and it's out of the oven by about 3pm. Fresh, it's beautiful, but the next morning, only good toasted. I've tried storing them in different conditions, in a plastic bag in the bread bin, in the fridge, everywhere! It is particularly noticeable with white bread; I make 3/4 whole grain and it is less noticeable because the crumb is denser. I've tried adding oil and butter and it makes no difference. Please help me.