I usually use the key pad and move my finger on the pad to work on the laptop. I am using a Logitech wireless mouse for the first time. The convenient little buttons on the left makes it not so comfortable to hold in left hand, and they lost their meaning when they cannot be easily clicked. I'm almost ambidextrous but I use my left hand more often, but this nice mouse doesn't quite work for my left hand. One little disappointment is that I don't see corresponding style for left-handies. I have been using them for only about 6 months (heavy use), I don't know about how long the battery can last but so far it works great. It also has long battery life, about 2 years according to the product description. You can turn it off easily when it's not in use. It's also very sensitive and accurate, works on all kinds of surfaces, great for home and travel.

And it has two small buttons on it's left side, which are super convenient for turning pages forward or backward - saves a lot of hassle since you no longer need to move your mouse to left top page and click on those slippery buttons, you simply move your thumb a little bit, and you can flip through pages easier than ever. And it's well designed, I think, since it holds perfectly not only in my palm but also in all my family members' palms, really cool.

It's full sized, rather than small mobile mouse like m310. Logitech M510 is a really good wireless mouse, and it goes on sale quite frequently, which makes it an even better mouse.

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