Do you ever use your left hand solely whilst using your Computer?

sure, if im typing, far faster than using just 1

Like, using the mouse with my left hand or just typing left handed? Nope. I use the mouse with my right hand and type with both hands.

Just depends. If I need to use the mouse simultaneously, then I type with the left and use the mouse with the right. Otherwise, I use both. 

Well I tend to use....only my left hand....(recently) because, the right one is a bit aching for me.....

I always use the mouse with my left hand, as awkward as it may sound to others. I also use my left hand when typing together with the right one. But the left hand is the one typing faster. Yeah I'm purely left handed. I use spoon with my left hand, I write with my left hand, carry my bag with my left hand....... and I wear my watch on my right wrist.

I only use it when I'm typing. Like how I am right now.

Juliet :
   Hey that's cool......well I can't really type fast with left hand......but below normal average speed.....

Lol, but I can't type fast with my right hand unlike people who are right-handed.
And it's awkward for me to use the mouse with my right.

I'd like to be able to use my left hand while using the mouse, it'd be nice to switch things up once in a while to reduce to much strain.  I'm on the computer for long hours and using the mouse causes strain on my right shoulder and right wrist.

I don't use a mouse on my laptop, I use the touching pad always(except when playing games), so it's not too much of a difference to use only my left hand. But I'm way more dextrous with my right hand and both of them.
But when I have to text on my phone and my laptop at the same time, I sometimes use my left hand on the laptop and the right on the phone, and sometimes the opposite. But the typing on both of the typing places(laptop and phone) is way more slow than the usual

i misread where you said solely. i sometimes do to push a few keys but if i need to type quite a bit and switch to both hands.

thenumberone : No am sorry.... I forgot to put "solely"....

No. I am left handed, but I hardly use my left hand ONLY.

I always use the keyboard with both hands and the mouse's hand switches at times.

Usually I use both hands for typing.
Funnily enough, though, If I'm to type with only one hand (ie eating while typing or something lol) I'm actually more prone to solely use my right hand for both typing and the mouse. Talk about overusing my right hand! xD (Yes it gets tired sometime but hey, if it works it works.)

I've typed solely with one hand or the other before, but I must say I'd prefer using both hands because it's much faster, although I have typed small paragraphs with one hand before. (and I don't like doing it, it's too slow for me. lol -.- )

But being able to use my left hand for the mouse? Now that would certainly be useful, like Davideo7 mentioned. That's pretty cool; but then again, it seems like in terms of left and right handedness I'm the exact reverse of Juliet. ("I use spoon with my [right] hand, I write with my [right] hand, carry my bag with my [right] hand....... and I wear my watch on my [left] wrist.")

But people like me are probably a lot more common, eh?

Only when I am busy with one hand.

Usually only while playing games

I use my right hand for the most part.

Sometimes I use my left hand, but only for the mouse.

Typically I use both hands when I type. The only time I ever use one hand is if I'm playing a flash game, which I haven't done in forever. Or if I'm typing in a password or numbers, but then I just use my right hand, because, hey, what do you know, the number pad is on the right side of the keyboard. Heh.

I don't use my left hand for anything other than playing osu and Steam. That's pretty much all I do with my left hand other than type, I use everything else with my right hand.

I use the Keyboard with both hands and the mouse with my right hand.