keeping a record of what you buy & sell
WHAT TO THINK ABOUT:
Keep a record of your COSTS.
Record your INCOME from sales and you can then
work out your PROFITS.
Customers might ask for an INVOICE.
An INVENTORY of your STOCK will help keep track of when
you need to get more supplies or make more PRODUCTS.
Keep your customers’ PERSONAL DATA safe and only use it to supply your PRODUCTS or SERVICES to them.
Keep copies of any CONTRACTS.