How can I use my signature for my e-mail?

How can I use my signature every time I send an email if i have never created one?

• By the way, If my signature is not what you put at the end of you email with your name, telephone, company, then, how can I created this final part without having it to do it everytime???

• Answer:

  From Yahoo Mail Help page: How do I add or change a signature? Click Options in the upper-right corner of your Mail page. Under “Management”, click Signature. Before you start typing, choose if you want to have your signature appear in plain text or in color and graphics. Above the text area, next to the word “Editor:”, click either Plain or Color and Graphics. With the toolbar that appears when you select color and graphics, you can choose which font you’d like to use and how you’d like to format and color it. Now, add or change your signature by typing in the text area. Check "Add signature to all outgoing messages" for your signature to appear on the emails you send. Anytime you’d rather not use the signature, return to this page and un-check “Add signature...” to turn it off. Remember to click Save when you're done. This puts your new signature into effect.