If you were the last person left on Earth

Let's be honest, who wouldn't? You're the last person left. This isn't the 'Oh, I'll survive for a few years in the wreckage and get rescued'. This isn't even 'Oh, we were destroyed by Aliens but I'll join with them'. No, you're the last human. And given that even today's best geneticists and biochemists can't reliably clone humans (ignoring all known problems with cloned DNA, inbreeding, et. al) much less clone them and change their sex, your average GFF poster isn't going to be able to do shit. Go play your favorite Video Game until the power goes out, then go find a nice fun way to die. I recommend explosions. If you're feeling particulary adventurous, find a nearby nuclear plant and turn off enough safeguards to go all Chernobyl on you. That ought to do it.

Jam it back in, in the dark.

Originally Posted by PiccoloNamek

I would never be able to kill myself

I think you all underestimate the effects of boredom. Plus, solitude does whacky things to the psyche.

There's nowhere I can't reach.