Thanks for all your messages and advice - much appreciated! I've thought some more about this and think that I may create a proper tagline to use on my biz cards. So far I have come up with:

Absolute PA:

a. Assisting your business & lifestyle
b. Assistance for your business & lifestyle
c. Administrative support for your business & lifestyle
d. Complete administration & lifestyle management
e. Freelance administration & lifestyle support

What do you think? I would really appreciate your thoughts, or any other suggestions.

Alicia