On Mon, 13 Jul 2009 21:53:12 +0100, "john jardine"
wrote:


I'd suggest buying a gallon of "Cellulose paint thinners" from the car
spares shop (£7). The stuff's an aggressive solvent and you need to be quick
on cheap plastic surfaces but it'll quickly do the job.

Acetone (Cellulose thinners) dissolves many plastics instantly and is
a last resort. Most felt tip will dissolve in white spirit, which in
turn is safe on most plastics and paint surfaces so try that first on
the hard surfaces. T Cut may work on the bath and won't scratch it.
On carpets virtually all solvents will leave an obvious mark if used
locally on the spot, you may find it better to get someone in with the
right equipment.