Many businessmen are still at a loss about what to do in order to remember all the dates when they need to send invoices to their clients. Though there are many ways out still the majority of those who deal with invoices everyday belive that there should be an automatic system that will compose and send invoices to the clients and record the feedback either positive (invoice is paid) or negative (invoice payment is rejected) and compile an indepth report. Their dream has come to life and nowadays there are many instruments that can ease life of businessmen. For instance, there is a shareware tool called Easy Time Tracking that is a classic billing software that besides billing functions has all other features necessary in everyday business.