Okay, I'll play along.... I need the post count....
CA
1. Do you include your ZIP+4 or just the first 5 digits?
Just the zip, nothing but the 5 digit zip
2. Do you put your suite number (if you have one) on the same line as the street name and number, or do you give it its own line?
I leave the suite number off entirely
2a. If you put it all on one line, do you include a comma between the street and suite? (e.g. 123 Sesame Street Suite 456 or 123 Sesame Street, Suite 456?)
I leave the suite number off entirely
3. Do you include your insurance license # on your business cards?
Required by state law
4. Do you include your middle initial?
No
4a. If so, with or without a period after it?
5. For your phone number, do you put the area code in parentheses, use all dashes, use all dots (e.g. 555.123.4567), or other?
(555)222-3333
I am aware that these pretty much come down to personal preference (except for maybe #3 if some states/companies require its inclusion), and I'm not asking for advice on my own personal cards. I just ordered a new batch and it got me curious as to the preferences of others.
*edit* Thought of another...
6. Do you use your state's abbreviation in the address, or spell it out?
CA