easy… pick my nose, masturbate, and change the channel at the same time.
I could pick up and eat one of those two-foot subs without having to cut it in half.
When I’m playing cricket and I’m coming in to bowl, I could use one arm to bowl, one arm to balance myself, and one arm to steal the umpire’s hat.
Oooo can you imagine? To be able to scratch your own back when you have one of those killer itches.
OooOooOoo
On the one hand, I could aspire to be tridexterous.
On the other hand, I’d be asymmetric, which is generally not attractive.
On the Gripping hand, this is fun to consider. 
HELL yeah! I’d totally take the tail over an extra arm…hmmm…would a prehensile tail be more interesting sexually than an extra arm?
Improve my skiboxing, of course.
(Zaphod, where are you ???)
I could finally masturbate!
Boy, I could talk up a storm in sign language!
So far, the responses have been rather pedestrian.
I’d whack off, scratch my ass and pick my nose. Preferably at my in-law’s house during supper.
You mean you’re not?! <pouts, disappointed>
And &@##!*, TheNerd beat me to the gripping hand bit.
Now that that’s off my chest–I’d want an extra pair, just for symmetry. I could manage all the game hotkeys at once, play duets with myself on the piano, and invent new wind instruments that require 4 hands (most now only take 3 ).
I’d settle for the prehensile tail, though–(Warning: Incoming TMI!) I’ve often thought of the sexual possibilities of one.
Use it to strangle Sweet Sue 
O Caterpillar? What does that mean?
I could finally walk and chew gum at the same time!
… I mean…um…
Damn! I’m NO good at these things!
Zette
I could have my own relay race in the Olympics.
My interpretation of her mental gymnastics is as follows. Extra limbs would make one caterpillar like. It is for that reason that she stretched out the ascii picture of “herself”
The third had in the car image is the one all my friends came up with first. Usually to tune the radio or find the baby’s binky or use a car phone. But gestures is sort of the same. I’m not in a neighborhood where gestures are a good idea, however, so even if I get the third arm I don’t see myself doing that one.
Hmmm. . .a third arm. With a third arm I would most definitely scratch the back of my neck constantly. Mmmm. . .just the thought of that gives me chills. That would be soooo good.
Hehe. . .yeah. I’m weird. I know it.
thanks Kyberneticist. I just seemed to have clicked on several threads that day where Sweet Sue had inserted her posts that made no sense to me whatsoever and I was feeling irritated.
I can’t decide what it says about my sanity that I can’t figure what most of her posts are about
Ask pretty near anyone who is a Furry/Anthrofan, the advantages and disadvantages of a prehensile tail in intimate encounters are very much…discussed in those circles.
Touch my toes.
TLB