Unsure about your fridge  idea with containers     mmmmmmmmm   i like most of your ideas  but this one   im not sure   maybe    2   of them but fridge full  ??????
Our fridge is normally  full    and getting somthing small out   is easy  and quick  but with everything  in containers   would be a pain   to me   the marge   or a jar of somthing   traped in  containers    we get far more in our fridge  with carefull  stacking    not to mention   bottles of sider
For this mod   i score you  2  out of 10  only for the 2  containers   that i mite use   but probably  not   
Evan with a very over full fridge  it still seems to  work quite well    when i know  theres far to much stuff in there  but thats the wifes zone   like her bag  ive asked  why do you need so much  thats what i need she says   i can bearly  lift her bag
I give up  on that   and that and just shake  my head
		
		
	 
Well 
@Bluey, Ill take onboard you scepticism but in my defence it's not actually my idea, its one of those urban myths which sounds kinda ok, but I don't think anyones actually tested it.  Im just putting the myth to the test, like Jamie Hyneman from Mythbusters, for the good of everyone cause im community minded (except you; Im not telling you).  And to be fair, your fridge cant be full all the time ????
I think your pretty right that a full fridge is more likely to maintain temp, but an empty fridge wont and thats where the bucket theory comes in.   The issue is when you open an upright fridge the heavier cold air will literally fall out onto the floor.    The urban myth is that the buckets will capture cool air, less air will be able to fall out and therefor the fridge will be more efficient and more easily maintain the temp.  
The key element you've overlooked is the buckets arent permanent, i can remove one, two, four or all of my buckets if theyre interfering with fridge packing, and then replace them when it suits .... so I can have both buckets, no buckets, and half buckets because i have the buckets.   You Sir are stuck with no buckets, because you scoff at the bucket theory.   Come on board the bucket experiment, you'll love it.   Bucket time is family fun time
(PS There are only eight buckets, so a point per bucket gives me 2.5 / 10)