Ok, I need help. I have made folders for each of our customers and for each expense we have. I'm trying to determine if I need to file in these folders all year (i.e. all gas receipts for the year would be in one folder, etc.) or if I need to file these expenses during the month. At the end of the month I would gather them all up and put them with our month-end reports. I would handle customer invoices and receipts for payments the same way. How do you all do it? Monthly or yearly? Thanks!