You need a marketing package on hand that you can send out to prospective copywriting clients immediately, as soon as they enquire.
What your marketing package contains is up to you. Here are some ideas:
* a short bio (100 words max) with a photo. Note: you're a consultant not a potential employee, so you don’t need to send your CV, no matter how impressive;
* a couple of work samples. You can print, scan, or send a PDF file of these work samples;
* an outline of the kind of work you do for clients, or would like to do;
* your hourly rate, and how this translates into projects.
I like to compile all this material into a PFD file. I burn this package onto several CDs, so that I always have some on hand to drop into the mailbox.
You can send your PDF as an email attachment, of course, BUT please ask your recipient whether she's set up to accept attachments. With the proliferation of viruses, many people strip attachments.