We run our own business, as well as having the usual household bills etc. I have a miniature filing cabinet (two drawers rather than the standard 4 - about £50 from Staples - metal, so reduces the fire risk), and hanging files in the drawers. I have a different file for each 'thing' - all the usual, like gas, electric, TV licence, car insurance, but also odds and ends such as 'cat' (otherwise I can never find her record when she needs her booster jabs). Within the files, papers are in reverse order - ie the most recent at the top, as this is the one you're most likely to need to look at again. I've never heard of Ohio - not sure it's even possible!! I keep tax stuff for 7 years, everything else for about 2 years. Basically when the files get a bit full I have a clear out. Oh, I also have a box for receipts (non business related) - anything that cost over £100, and anything that has a guarantee goes in there.