I get mine mainly from the local recycling center. I ask them to put aside any corked wine bottles in exchange for the empties and they gladly oblige. I call mine on a Saturday morn and go down in late afternoon and can usually grab about 100. One time I needed a lot more and asked them to save me a few days worth. 4 days after asking I went down with my car and filled the trunk, back seat, and passenger seat. I gave the 2 guys there a case of assorted wines and they were thrilled to death!! Amount may vary per day depending on location. Dont be afraid to go to one of these places in a sort of richer area where it would be more likely that people are drinking wine and not moonshine or gallons of cheap vodka! LOL. Actually he recycling center (dump) I go to is one town over from mine and not my town. I also use wineries but nowhere near as much as others as most of the good ones are too far away from me. The thing with them is they may want you to pick them up daily or bi-daily as they dont want you in their dumpster and dont want them hanging around their place too long (unsightly). The only bottles Ive ever bought were the Belissimma 375 bottles, no wineries near me use them and you rarely see them in the dump. A friend of mine in North Carolina gets these by the case and many cases a week, lucky SOB as these are the most expensive!