dadshomebrewing, you do realize (I hope) how LONG it will take to go through enough bottles for even a 5 gallon batch... Right?? Not to mention energy/fuel used to get the water up to a boil (and hold it) that many times. IMO, far more effort/work than it's worth. Especially when you can use zero energy (stove top) by mixing up some PBW (or oxifree) solution and giving the bottles a good soak.
Thankfully, I no longer bottle (entire batches), so I don't need to deal with this.
WHEN I do bottle, it's off of keg/tap, so I have a handful of bottles to go through at any given time. Since I also make sure to rinse them once drained, I don't need to go through all that to clean them.
The majority of the bottles I do have were purchased new (by me) so I don't have to worry about things left in them. I have given brew to some friends, that let the bottles sit with the remains in them for a while. Those got a good PBW soak and rinse before being put into rotation.