Somehow I got really annoyed with writing invoices. Dunno why but it always seems to take forever to get all the information together and write the d*mn things. I decided to take matter into my own hands and program a web-based system to create, manage and print them. Spending two lonely evenings behind my computer I came up with a nice ajax-based interface and a system that allows me to output directly to pdf-format. Now it takes me about 30 seconds…