All sort of work whereas online or offline needs billing or invoice. Starting from the startup, retail, e-store and well-established organizations need billing to check how much they produce. Accordingly they will calculate the profit. It is necessary to calculate the amount of work they have done for a specific client.
Every client needs separate invoices because they have done different sort of works. Those days were really gone when people opt for pen and paper to make invoices. It is the era of technology and automation where things can be generated within a few minutes without being hassles at the same time.
Invoice generation is considered as one of the hectic tasks due to the involvement of a number of procedures. But with the adaptation of the invoices software things will definitely get much better. All you have to do is to make the list of the clients you have and the work you are doing for them on a monthly basis.