This tiny Laptop Surge Protector should protect your laptop when the nasty voltage spikes come-a-knocking. It works with figure 8 style laptop plugs and goes between the mains outlet and the transformer. The light indicates the protector is working and goes out when the surge protector dies. You can also buy the Laptop Surge Protection 3 Prong version. They’re both US$9.95
Tiny ElectraShields protect your laptop computer and other sensitive electronics that use C6 and C8 power cords from the damaging effects of power surges and spikes. Connect one between your power cord and power brick and a surge active indicator light lets you know it’s protecting your computer.