FT Sheets

>>	Grease pencils rub off easily without wetting that's why we use
>>them instead.  I suppose it's just a matter of preference though. 
There's
>>no reason why you couldn't use the water-based marker pens as well.
>>

>You might also look into Dry Erase Markers. You'll just have to be
careful not 
>to accidentally rub anything off.

Dry Erase Markers don't erase completely from the sheets we're using.

Peter Caron