I have most patterns on my pc. As already said by others in file under scroll saw patterns and then I file in catogories and sub catagories eg Animals and under this Cats, Birds etc. My printed copies I laminate and number and put in a folder, I can copy at my work so I mostly only print a pattern once and make copies to use as I need them. I have a spreadsheet with the numbers of patterns on file and how long it took to make and what finish and for whom and the costs of making it. Works for me. Only orginized this about 2 months ago, took me about a week, but works well. I used to have my patterns all over my pc and all over my workshop and could never find what I was looking for.
David