This thread is moving so fast that these questions are already pages earlier.
Nonetheless:
for the question on storing in a corner cupboard - my suggestion would be to put a box in there which can be pulled out in one go so that everything stored in the box is easily reachable/visible. We have hugely deep cupboards in the kitchen, and everything at the back used to just fall into chaos, go past the use-by-date, get forgotten, and so on. Once I started using boxes like these, for storing jam, flour, spices, and so on, it's made a huge difference. Some space might get wasted with this method, but the control and visibility it gives has made it worth while.
for storing medicine - we did this several months ago. After chucking out all the random crap and out-of-date stuff, I sorted what was left into categories that made sense for us. I decided: coughs and colds; fevers and headaches; kid's medicine; band-aids and disinfectant cream. Then I took a bunch of reasonably sized zip-lock bags, labelled each one with a big and easy to read label, and put stuff from each category into each bag. Then put the bags, standing up in true Kondo fashion, into the cupboard. So far it's worked really well. The small amount in each bag makes it easier to give a quick check of the use-by-date at the other stuff in the bag when you use one item from there, and the separate bags make it easier to find each thing quickly and easily - particularly useful when you've just cut yourself while cooking and are dripping blood all over the kitchen, as happened not that long ago. Was able to grab all necessary stuff one handed without even having to rummage!
On husbands not being on board with the process: I started clearing out months ago, as I think I said on the previous thread. DH first didn't notice, then when he did, made sneery comments about OCD on my part. But then, after several months had passed, he started tidying up the random crap that he used to leave lying around on the kitchen bench. And putting stuff back in the cupboard when he'd finished using it. Then over Christmas read through the book, cleared out heaps of clothes, books, papers, and DVDs. He even tidied up his office at work (which was massively untidy, and his super-organised secretary has been on at him for years over it. She was in shock at the change.) His desk at home has remained tidy for longer than ever before, and we've been married 24 years.
So it was a slow process, but change did happen.