Invoices

Invoices are basically just receipts. If you think of them that way they make a whole lot more sense.

Every invoice needs to feature the following things:

• Your name 
• Your company's name
• Your logo
• Your address
• The customer's name
• The customer's address
• Details of the products/services you supplied
• THE WORD "INVOICE" (otherwise it isn't an official invoice)
• The invoice number
• The total cost due
• Terms of payment

whack all of these things onto a spreadsheet and email it to your client and voila! you've just sent an invoice like a professional. Well done you.

When it comes to pricing, you're gunna want to add up all the products you've used, any travel expenses, your hourly rate as a MUA on whatever job it is you're doing, and then add 15%.
So the maths should look like this:

(Products + Travel + Time) + 15% = Total Cost