I use Acetone on a piece of old (all Cotton ) T shirt...
If you catch it while the CA is still fresh it will wipe off a lot easier than if it's had some time to harden.

If it's a big spill, I dampen the cloth w/ Acetone, and set it on the area for several minutes to soften it, then wipe carefully. It usually takes a few attempts to get it all off.

I'm talking about Ultra Coat or Monokote covered surfaces...and if you wipe lightly you won't scratch it.

Painted surfaces are another story...[:@]