I download all my chart results, notes,visits,etc to .pdf files and offer a memory stick to practitioners in place of reams of paper. They are in folders based on test results, primary care and body part(s) or specialist. I carefully rename each file to clearly note the date and topic.
If I get paper records, I scan them, save as .pdf's and do the same. I also keep a file in another folder listing all current and past medications-I use a spreadsheet, list med by generic and brand name, purpose, when and by whom prescribed, dosages, any reactions, when stopped... I include all OTC and supplements too.
Everything fits on a memory stick , is easily updated, and I can give it to any clinician and make a new one for under $5. NO PAPER, NO FILING,EASY!

I store all insurance and Medicare claims and doctor bills in another set of folders, but do not share on memory stick. And if I have any disputes, I can keep a word file of all contacts there too