I've had such a good experience with Neil Antin's mixtures to produce a Cleaning Solution, it is more than worthwhile familiarising oneself with this option.
Ultrasonic cleaning
How many of you are ultrasonic cleaning your records and what solution are you using? I have a Kirmuss ultrasonic machine and I am currently using Tergikleen solution with distilled water. Have some Audio Intelligence ultrasonic solution on order to try. I can tell a big difference with noisy records lowering the noise floor.