6 packs for seeds/plants?

Hi There, Does anyone have a reliable source/place that I can order the light weight plastic 6 packs? I've searched online and am not having much success. I thought it would be nice to germinate my seeds and grow in that since it's usually so easy to pop out when it's time to transplant into the garden. Thanks in advance for any advise!

How many do you want? If you don't mind used ones I bet you could get them for postage from DG members. I know I have a whole pile of them in my garden shed. I like to use them for growing my veggies starts because they are harder to tip over than tiny single pots and that seems to be an issue around my house.

I get used ones for free from a local nursery.

Here is my favorite place, they sell both in case sizes for growers and in smaller sizes for the Hobby grower.
http://www.greenhousemegastore.com/Nursery-Flats-and-Inserts/products/1108/

Dang, I wish I had seen this yesterday. I just ordered 5 humidity domes for 16.00 elsewhere and on this site they are 10 for 20.00 dollars. Maybe I'll cancel my other order.
Lisa