I see that cool Instagram artists have a nice two or one finger glove that protects them from accidentally touching or triggering the touch screen display while drawing with their pressure-sensitive pen.
And, of course, I'm envious.
However, I have a simple solution. Yep, I have a plain linen (or burlap?) cloth placed on the screen as I draw. Seems to work nicely for me while I dream of spendier days.