C A C

use FSS or DUAT and the system saves a record of what you asked for and what you got - which makes it easier to defend yourself when the TAF changed after your brief or the TFR was established after takeoff.

if you read the brief, it's even better.

as for understanding TFRs, those who are too dumb to understand http://tfr.faa.gov/tfr2/list.html are too dumb to worry about flying at all