I managed until I didn't, and the admin was what got me in the end - 10 years later I was diagnosed with adhd so I could at least forgive myself for being so ab

I managed until I didn't, and the admin was what got me in the end - 10 years later I was diagnosed with adhd so I could at least forgive myself for being so absolutely awful with record keeping. Back in the day though I used outlook calendar entries as the basis for my billing as I used windows mobile on a motorola flip and had sbs2003 running exchange with a custom app that would read the calendar entries and let me assign to a customer and create an order - once I had a number of orders I could create an invoice and send via email.