I store mine at Sondra's house because she has no little children to get into it!! :lol Then I just bring home enough to make a few batches of soap. I store mine in gallon freezer bags that I double bag. These I keep in a plastic tot box that is in a cabinet in the laundry room on the top shelf and all the way in the back. I really need to put a lock on that cabinet to be extra safe.
I keep the 50 pound bag, which runs from $35 to $45 depending upon where I pick it up, in a rubbermaid container in a closet with a lock. I use a scoop to scoop out the lye and keep what I am using in a tupperware canister for cereal. Now that I am using the liquid, that practice will only be for when I run out of liquid. Vicki
Mine runs just under $1/lb. I found it at a chemcial supply place listed in the yellow pages. I empty my bag into a 5 gallon bucket with a tight fitting lid. *I* struggle to get the lid off so I know my dc could not. I keep smaller amounts in a plastic container in a cabinet off limits to the dc. I wouldn't want to deal with going in and out of a baggie. Seems like static el. might have some spilling out. I'm careful not to fill my containers too full for that reason.