For appliances or any major purchases, I usually staple the receipt to the booklet that accompanies it. That way it is easy to find if there is a warranty issue. All other receipts I store in a container next to the computer. I log all my receipts into Quicken. After I reconcile my monthly statements I toss those receipts and will only hold onto those for items that I think I may need. (I paperclip these together and have a postit on it with "KEEP" ).
I have file folders in my filing cabinet broken down by category in which I keep my purchase booklets and major purchase receipts in case I need for warranty purposes. I have folders marked, major appliances, furntiure, housewares, entertainment, lawn, laundry, kitchen, etc. and the booklets and receipts are in there. Easy to find.
Yes, I am very organized, everything in its place, and a "financial" person. Lol