I sprung for the Audio Desk Systeme ultrasonic Vinyl Cleaner. Was not planning on buying anything at all cause I am very happy with my current system, but after 3 days of studying that thing, I took the plunge.
Glad I did, I am loving that gizmo. Even my wife thinks it is a great product (Of course, the alternative is me taking over the kitchen table for hours at a time with the VPI).