I have only read one of her books on tidying up. I have not seen thr show.

I also have bought one of her products from the Container Store (my favorite store). Spice jar labels. Buy I also bought other brands of spice labels and ended up keeping a different product, not MK. The quality of her product was underwhelming.

By her folding technique, do you by any chance mean rolling instead of folding? I now roll when packing for travel. I have read it is better and I agree based on the little experience I have had. But not sure that came from MK.

I partly practice MK's idea from her book on not moving clothes seasonally but only partly. All my autumn slash winter (slash because I live in Northern California and there is no real winter) are in my coat closet in thr apartment. I simply do not touch them in summer but I do not move them someplace else for half a year. It makes sense and having coats and jackets on hangers all the time prevents wrinkling.

Buy for shoes, I have winter and summer pairs which I swap as I do not have enough space to have both sets at the same time. So the current rotation is on short shelves in my office and the off season rotation is in boxes.

Speaking of shoes, MK recommends shorboxes as the eternal and essential unit of storage, but I much prefer clear plastic boxes from the Container Storage for most things I store. Yes they cost money but they last long and I love seeing at a glance what is inside the box. Labeled opaque boxes have never worked as well for me as clear boxes, labeled or not.

So in my limited experience, MK had helpful pointers but is not a panacea. One still needs to think through one's individual circumstances, needs and likes.