Too many old contacts. How to delete?


New Email
How can I delete some of the contacts on outlook email? When I click on the address space to aim a new email, I type the first letter of the desired address and get a list of addresses containing the same letter. Many of these I only used a couple of times and never again. How do I delete them?
How do I send BCC email to everybody on my email list without going through every letter in the alphabet and clicking on every address individually?
Is there any way to get more than thirty five emails on the panel at once? Its a pain to have to skip up and down when going through many emails.

Thanks lots all!