haha...
used to have those roller mouse, but found out that they collect
dust easily, so I either sold them off or gave them to
frens...
then I bought a wireless mouse, but it has a hub so quite
impractical, have to carry the hub whenever I want to use it, so I
cant bring it outdoors...
now I have a Logitech optical mouse, not wireless one la, but has
been serving me well for nearly 4 years liao...
will be replaced by the pen mouse soon...