Signatures on forums are a great way to transmit information to other roleplayers. Whether simple or complex, your forum signature can greatly enhance your roleplaying experience. Need to make a note about your character? Go for it! Want to make it clear your character has a unique physical characteristic that should be noticed? Do it! Going away for a week? Add it to your signature!
Simple Text Signature
Very simple. Uses Google Web Fonts.
Image and Buttons Signature
Allows easy promotion of the RPG things you care about via the ever-popular 88×31 button. You can use a low-opacity transparent image on the right-hand side. Make it something that matters to your character!
Like the prior signature, using a different ID for each of your characters allows customization — font sizes, your background image, etc.