Other than grocery stores, where is the cheapest place to get moving boxes?

Try craigslist.com for your area. People always seem to be giving them away, sort of a pass it along kind of a thing.

Call your local Borders and ask them to save you a pile of book boxes. They aren't very big but they stack easily on a hand cart and they don't reek of food like grocery store boxes. Call on a weekday afternoon as that's when they're likely to be emptying them.

I walked past a dollar store the other day and they hand a big stack of boxes out front of various sizes. That may work for you.

get like apple boxes from the grocery store. not the meat or banana or anything like that. unless the apple boxes smell too.

liquor stores have tons also

beat me to it. they post freebie ones every few days here (fill dirt daily if you need that). They have some listed here today but I doubt that would do you any good (also a free car ). I look at the site every day just for a good laugh on some of the things for free and for sale.

could try to barter for them?
http://atlanta.craigslist.org/bar/72524206.html

go to a shopping center and drive behind the buildings. usually you can find quite a few in bundles ready for the trash. also, barnes and noble has been my source everytime i have moved (3 times, btw)--book boxes are very sturdy and the perfect size.

Dollar stores are great when looking for boxes. I had one of these stores let me go in the back and take as many as I wanted.

I second the liquor stores. The boxes are usually smaller, so they're not good for packing big bulky things, but they're usually consistently shaped [easy for stacking], some have handle cutouts, they're strongly built, and sometimes they come with those cardboard dividers on the inside, making them great for moving your own glassware/bottleware. We used lots of them for the heavy items like hardback books, and since they are so plentiful and free, we didn't mind having a lot of them. Plus becauase they are smaller, they can be put places bigger boxes can't [in the front seat of the moving truck, in the back seat of smaller cars of people helping you move, etc].

Other than that, maybe drive around the back of a shopping center, see if you can find either a cardboard recycle bin or just a bunch of boxes behind a store.

I'm actually surprised the store let you go in 'the back' to get boxes, dcswirl. Do you mean the 'back room', or the 'back' of the store, that is, outside? If it was the backroom, that's unusual--very few of the retail stores I've worked at would ever let a customer in the back, due to shrinkage and safety concerns. But the back, behind the store, that's different.

You may also want to check if there's a Freecycle mailing list for your community, I've been seeing a lot of 'moving boxes' posts recently on mine. When we moved, we just stuck with liquor store or boxes from work, we didn't want to drive all around creation looking for boxes, we just hit the liquor store every couple days, and kept an eye out at work [those boxes the copy machine paper comes in are good too, except many of them don't have handle cutouts.]

I'm of the opinion that unless you are paying someone to pack and move you, or you need a specific kind of box for a specific kind of item [fragile, odd shaped, etc], one would be a sucker to pay [retail prices] for moving boxes. Yet obviously some people do; I just can't imagine paying 2-5 bucks each for 50-250 boxes.

go to your local grocery store as them when they put out new stock and get the boxes form them FREE

Liquor stores are best, as they are most likely to be constantly having boxes.

Every movie with a car chase shows them crashing through huge piles of boxes.
Just watch your local news for the next big chase and get in on the free boxes!!!

Yeah but all those boxes will already be smashed and unsuitable for use when moving.

McDonald's and Burger King...good sized boxes...catch them in the morning as they are stocking...

buy storage tubs. they are cheaper and stronger then boxes.

If you don't mind paying for boxes, here are a few to check out:
www.uline.com
www.youboxit.com
www.coastalpack.com
www.ebay.com