Stand, struggling with one leg on the toilet seat.
I do it sitting. I'm not a fucking acrobat, I can't do that one legged shit.
To everyone disgusted at the idea of seeing poo in the bin when you put your paper in the trash... You just put it poop-side down. Looking at our bin you don't see any poop. It's not like you toss it in haphazardly 
WHAT?? Unheard of! Next you'll tell me you don't proudly display your sanitary pad open on top of the pile for all to see. When the girls were babies, you didn't frame their used diapers?
You have a bin full of shitty toilet paper? You can't flush it?
Yes, they cannot flush it.
Depending on the age of your home, and the pipes hooked up to it, there are some things you cannot flush. We always flush the paper, but in the past when we flushed tampons (in a home with 4 females) or when we used a certain kind of toilet paper, the system would clog and we'd have to pay a fuckton of money to get some guys to dig up the back yard and scrape everything out the pipes. The best way to avoid such a catastrophe is to just throw the paper in the trash.
When I was a kid, my grandma never flushed their toilet paper (she never closed the bathroom door either, which struck me as weirder), and trust me I would have noticed if her house stank. The trash does get taken out.
I also want to know of the method of just water and your left hand. Do you just air dry? Or do you pull up your underwear and let that soak up your butt water?