Verbatim 96992 Easy Riser Wireless Notebook Mouse with Nano Receiver (Verbatim, 2010)
Pros: wireless. I hadn't realized how annoying cables are when dealing with my work laptop (which I lug home most nights) until getting the wireless mouse; I'm now thinking about grabbing a wireless keyboard as well (and praying for the day when someone releases a reasonably-priced wireless power supply).
Nano receiver is awesomely small and doesn't get in the way of other USB cables you're plugging into the laptop at all.
Cons: Way, way over-sensitive. I run music software on my machine that's used in live performance, and delicate tweaks can be difficult with this mouse. If you use your laptop for gaming and you don't have the reflexes of a fight pilot, you'll find yourself wanting a less sensitive mouse pretty quick.
Seems a tad on the pricy side for being just a mouse (I paid about the same for the wireless keyboard/mouse combo I use on my desktop), but I'm the kind of person who always buys bargain computer equipment, so YMMV.
Not-quite-cons: Battery life seems shorter than it is with the wireless mouse I have at home (and that one's always on, as opposed to having this one's energy-saver feature).
Would have been nice had the pop-up feature been a tad more adjustable; when fully extended, it's about a sixteenth of an inch too tall for absolute comfort. I found I adapted to this after a couple of days, but still.
Overall: Serviceable, but not for highly detailed work. As long as you're a basic end-user not doing gaming, CAD, or the like, it should suit. And you'll love getting rid of yet another tangled, annoying cable. *** ˝