Here is a whole lot of inexperience wondering what to do....

I tend to want to think about systems that I put in place with regards to how well they will handle growing, and I was wondering about filing.

What works well? Is it better to file things under client files, or a "type" file (e.g. invoices, quotes, etc.) How about supplies? Should they be with the job, under a supplier file, or with their general category (e.g. tools, components, stationery etc.)

Anyway, what works for you and what approach would you recommend for me? What does SARS like? What do accountants prefer? What makes things easiest to file?