I use Ikea Lack. It works for me. My laptop, dac and amp don't seem to be affected by me slapping them, so why would they be affected by tiny vibrations from any other source? I have rubber feet under the front of my dac to tilt up the screen and rubber feet under my laptop because the fan vibrates through the LACK amplifying its mechanical noise. Nothing comes out of the speakers though.
My turntable is suitably isolated though with an air-bladder.
Some people claim to have great success with supports, I've never found it an issue.
Kuzma Stabi/S 12", (LP12-bastard) DC motor and optical tacho psu, Benz LP, Paradise (phonostage). MB-Pro, Brooklyn dac and psu, Bruno Putzeys balanced pre, mod86p dual mono amps, Yamaha NS1000m