How to copyright your art work for only $45?

Easy, please visit U.S. copyright office and then click "How to register a work". You can not only register visual art works but also performing art works, etc. Yes, copyright is automatic granted once upon the work is created, so why you bother to pay? Because then your copyright become public record and it is easier to sue someone if he or she copy your work. $45 maybe your best money that you have ever paid. I actually wrote a letter to copyright office and asked if I can send CD-ROM with all the art works. The answer is positive. See here for more Q&A about copyright