Perhaps you are one of the stand-to-wipe types, but if you remain seated throughout the drying operation you will not have to deal with any rivulets.
Also some toilets have an air-dryer.
Also some toilets have an air-dryer.
It is kind of nice to have hot air blown up your ass though.
http://www.youtube.com/watch?feature=player_embedded&v=2...
tl;dw: thorougly shake, the wipe with one paper folded once