Where to get cheap PET beer bottles?

I want to have all, or almost all PET beer bottles. I was just looking at them at the brew supply houses and not only are they over $ each I haven't yet seen them in standard 12oz sizes. The only ones I've found are 500 and 750ml. I'll probably get some 750ms sizes for splitting a brew with someone but 500 seems like an odd size.

Anyone know of there is a cheaper supply of bottles, or any supply of 12oz bottles? I've heard that you can get coors in PET but I haven't seen them at the stores here in WA.

BrewOnBoard

Soda bottles are free and made of PET.

I use 2 liter soda bottles to carry beer around (I keg).

The smaller soda bottles work good, too.

Some root beer comes in 12oz amber bottles.

Whats wrong with the 500mls? 16oz is a good size if you ask me.

I have heard you can use that plastic safe spray paint on PET soda bottles to block the light.

I might give it a try.

I just buy beers with a pop top. I use needing bottles for my brew as the excuse to the boss...lol