How do you keep the flour that you use most often. Do you have some thing special for it. I keep my all purpose flour, the one I use most often in a Hungarian hand thrown sauerkraut pot, it does have a place , draining hole in the bottom that I have a cork in. It was given to me by a dear friend many many years ago. It holds 10 kg comfortably. I like to keep this pot on a folded tea towel or as like my mixers etc on a mouse pad, they then slide easy closer to me as I want to work with them and don't scratch the counter. Plain pastry flour is in a stainlees steel container smaller only holds about 1 kg and another small stainless steel container for my hard wheat berries, also about 1 kg. 
qahtan
just the other day I through out my Hungarian hand thrown sauerkraut pot! Now you tell me! :)
Seriously, I am looking for good cheap containers for my flour, about 10 lbs. of each.
BH
If you're located in the US, try Bed, Bath, and Beyond for a 40 cup container with an airtight sealing top. I pickeds one up on Thursday and its normal price is around $12USD. I put a 10# bag of Eagle Mills AP flour in the container with room to spare.
BB&B often sends coupons through the mail and there may be some available over the internet. Their current coupons are good for $5 off a purchase and another for a 20% discount. There may be conditions such as a total purchase cost attached to these coupons.
My wife sells Tupperware, and that's what I use.
I have several cannisters I fill when I get large quantities (I don't keep ingredients in regular packaging) and a large rectangular keeper (I think its 13" X 9" X 5") for the counter whichmakes it easy to get the flour via the spooning method. I label all my containers with a P-Touch labeler (which I got on sale at Staples for $10). Although it isn't cheap, it is durable and seals really well.
tupperware.segalandassociates.com
my.tupperware.com/magee
At Sam's, you can get Rubbermaid 12qt storage containers at 2 for $20 which is what I use to store my APF and BF. It holds about 20lbs of flour comfortably, and the other 5lbs or so goes into storage containers from the Dollar Store :) They sold these sets of 4-6 containers that nest together for $3 for the set. The largest one holds a 10lb bag of flour perfectly, and the next smallest holds a 4lb bag of sugar perfectly. Try checking out your Dollar Store if you're in the market for new tubs.
for pounds of flour to quarts? I.e., how many quart capacity do I need to hold 10 lds. of flour?
BH
Here's a great site for conversions : http://www.traditionaloven.com/conversions_of_measures/flour_volume_weight.html
BH