
This morning it happened again, but this time just a flash and a ping, and another dead (but this time intact) filter

When I know there is a storm I unplug the line, but both ADSL filter-murdering storms happened while I was in bed (it's a brilliant alarm clock) , and there will also be times I'm out etc
I've had a google and read so much geek terminology my head hurts!
Apart from unplugging, is there anything I can do to protect my line? Do any reasonably priced gadgets overcome this problem?