Then I guess it must also depend upon the particular bread, and whether or not you have sliced it. I have witnessed some bread tending to resist staleness longer than others. I also save the end piece/slice as a kind of "cap" on the end, which seems to help the cut end from going stale.
I usually buy a small brown or some form of seeded bread to eat fresh over the week, and a white one for the freezer for a bit of toast now and again.....plus i have started buying those small baguettes you get in packs of four that last months unopened, and you just bung in the oven for 10 mins. Lovely.
So that's how they make croutons! If I had a blinking red light on my palm, I wouldn't be able to think very well either!