Have transformer will travel.
So in a moment of blinding panic last night, I realized that I forgot to bring an AC adapter to convert my 110V laptop cable to 220V. I've done this before, but usually I can get a small adapter from the concierge and I'm set. Well, instead of an adapter, all they had was a full blow transformer that weighs about 5 lbs. Niiice. Since no stores were open prior to the start of class, I was stuck packing this monstrosity all over Hong Kong today.
First thing after work, I found myself a electronics stand and bought an adapter for a $1. Have adapter - will travel. Lighter.