Ever done any side work or sold something on ebay or elsewhere and needed an invoice? Chances are if you’re like me you used some crappy word processing template or simply typed up a bill of sale. Blinksale offers a credible alternative to this. It’s a free (depending on how frequently you need to use it) web service with great templates and an excellent interface. Log in, create your invoice, print, and you’re done. It’s capable of more if you need it – tracking payment, invoice date and so on, but it’s also drop dead easy if all you need to do is create and send an invoice.