Any sizes but must be worth a trip, though, Thanks very much!
Check out Craigslist. I recently saw a couple postings for nurseries getting rid of LOTS of pots. One in Essex, one in Sykesville. Ididn't have the time to make the drive myself but they had lots of sizes available. Good luck!
I have a couple of hundred pots of different sizes. Send me an email if you would like to come get some. I'm in Columbia.
I could also use some (sent you an email but not sure Gardenweb email actually works). I could stop by tomorrow (Saturday) morning if that's convenient.
madsquopper AT hotmail DOT com
I have stacks of flats. I could bring them to the swap (I think at this point).
A hint: At the end of the season, Riva Gardens on Riva Road near Annapolis throws away a million pots and flats.