The best option is the
bum-gun + throw in the garbage. Sans bum-gun, flushing is mandatory.
The north-american paper-only butt-cleaning protocol is, frankly, disgusting. If there was a smear of poo on your floor, there's no way you'd grab a paper towel, give it two or three wipes, and declare it 'clean' so why do that with your own butt?
Bum guns are cheap, easy to install, and easy to use. Anyone who doesn't have one is a poo-covered ape.