Sorry to hear about your house fire! I hope everyone is okay and the damage can be fixed in a timely manner!
I have never used the space bags, but have thought about it.
I love the rubbermaid containers...I use those for everything...but I normally take trash bags and get all the air out of them..then put them in the rubbermaid (or any plastic tub w/ tightly sealed lids)..that way, I can get more in them!