If you are a small firm using paper documentation, it is advisable to quickly switch to digital. because once you start growing, it will be very difficult to integrate all your documents into a digital system. and working with paper documentation as a big company is time-consuming and almost impossible
I bought a Mac book pro for that exact reason and its been going strong for 5yrs, slow computers are very frustrating. Its worth the money to IMO.Probably 95% of my estimates and invoices are hand written.
My email is longer talking to my invoice software and will cost a few grand to fix(hardware issue) but a pen and a piece of paper costs very little and rarely breaks down. And if it does costs a few dollars and trip to the store.