For those of you who are interested in obtaining square buckets, "The Bucket Guy" sells them for $1.50 (even though his website says $2.)  He also sells the large, 1 gallon, zip lock heavy Mylar bags for only $1.15 and 1500 cc's oxygen absorbers for only .75 cents. (Just as a comparison, the ones you usually get are only 200 cc's.)
The buckets are GREAT for storage b/c they take less room, stack easily, etc. I use mine to store medical supplies, dental, pasta, and tons of other things in. These are used white buckets, just FYI.
He and his wife, Angela, are located in Orem. For contact info simply go to www.thebucketguy.com  Tell them that "Kellene" sent you and you'll get these deals I'm telling you about instead of what's on the website. Enjoy!