How do you charge?

Hi all,

Recently, I've had a few inquiries to do *very* small Paralegal jobs (ie: typing up a motion, other typing work) for non attorneys.

I told the prospectives that I charge by the hour and that my timer runs by the minute - meaning if I work 15 minutes on the project they pay 15 minutes of time.

It seems that they just want me to give them a flat rate for such work, $X for a motion, etc.

How do you handle this type of small work? Do you charge by the hour or by the project?

Joy