Here is a small script to mount one or more TrueCrypt favorites without having to input the password more than once.
It will while the script is running use cache and then when it's done running remove the cache.
All you need to do is to put this inside a bat file and then run the bat file.
(Offcource you have to change filepaths to reflect your own environment.)

@echo off echo **************************************** echo *                                      * echo *    Mounting TrueCrypt volumes        * echo *                                      * echo **************************************** echo Loading favorites "C:\Program Files\Specials\T\TrueCrypt\TrueCrypt.exe" /q /cache y /auto favorites "C:\Program Files\Specials\T\TrueCrypt\TrueCrypt.exe" /q /s /wipecache exit