i have two of these. One goes in the freezer, the other goes in the cupboard.
I cook a loaf so it's finished in the evening. This gives it plenty of time to cool before making dd1's sandwiches in the morning, and makes the crust go crusty. It is also easier to slice if it is completely cool. The crust is softer if you only let it cool a bit, then put it straight in the breadbag.
I slice off between four and six slices, including the crust first of all, partly because i don't want to have to eat a crust when the bread is fresh. This goes in the bag in the freezer. Then we all feast on fresh bread that day.
From what is left the next day, dd1 has a sandwich at school, dd2 and i will probably have toast. The next day we eat up what's in the freezer - still quite fresh for a sandwich (take a slice out of freezer when we get up, make sandwich before we leave for school), definitely fine for toast.
Begin cycle again.
I wouldn't slice bread that you were going to freeze, as it will dry out more quickly. And shop-bought bread comes in a plastic bag, so that is clearly the best way to store it. You could just use old bread bags, but we no longer have any as we no longer buy bread!
You've got to have a system!