My universal (universally bad) power adaptor didn't work on a recent trip to Dublin.
I spent 4 days begging colleagues for the use of their adaptors such that I could sufficiently charge my laptop to get to me to the next begging event. Maintaining the charge ruled my life, it was more important than actually doing any work on the thing.
I felt like some desert Bedouin hopping from one "power oasis" to another, thoughts of water taking precedence over all others. No better feeling than getting home and simply plugging straight into the wall and drinking in that sweet sweet current.