Have been looking for a fast sensitive way to stain SDS/PAGE gels, but they all required 3x washes in DI water (other than the old Methanol/acetic acid Coomassie method).
Have used the stain free gels from BioRad and they work but I have to take them to an imager outside of my lab. Then I tried AcquaStain from Bulldog Bio, a Coomassie based stain that you can put your gel right into without having to do any water washes, fast (~5 min. to see bands), sensitive, low background.