...which usually turns out cheaper than eBay ^^

But I agree with Haruna...I'd put them in bags, 
too- there's rumor that they can be scratched 
(it's unknown whether this is true, but I feel 
that it's better safe than sorry). They can also 
stick to that black paper in the portfolios (and 
I don't trust that anything with black dye is 
acid free, but I digress).

-Misha