I started with binders but found it too much of a task. So now I use a big accordian file. I labelled each section (Christmas, houses, garden, Hawaiian, classic, stencils, retreats and even one for receipts). Easier for me than holes, sheets, etc. I do use sheets if there are pieces, etc.
I keep my magazines for the same reasons; my tastes and abilities have changed. I store them in the bottom of my stash cupboard and take them out from time to time and it is just like getting new ones in the mail.