Travel Power Strips

The gentleman next to me on the train right now really likes the travel power strip in my kit: http://amzn.com/B0011U94GY

That one is from Targus, but here is another good choice from Monster that folds nice and flat: http://amzn.com/B000F9YN2M

Lastly this is kind of expensive from Victorinox but super nice, it comes in a posh travel case.  Very nice: http://amzn.com/B003954FX6