Then I discovered this beauty: This is the LEPOWER 40W, 5 Port Desktop USB Charger. This thing replaces all those power blocks... most of them nowadays come with USB cables for each device that plug right into the block. Well, instead of taking all those blocks, take just this one.
The beauty of this thing is not only the 5 USB slots, but that two of them (on the right) are super chargers (higher power). When I plug my Kindle into one of them it charges in less than 15 minutes. We've tried our Motorola Droid phones (3 different models), Ipads, cameras, you name it. They all get charged with this one charger. Plug the larger devices into the two right slots, the rest (like smart phones) into the other three. Also, the thing has some sort of circuitry that speaks to each device and gives it the correct amount of power needed for charging. So far, it works with every type of device and I haven't fried a single one. For Italy, all I have to do is plug in one of those European adapters into its power cord and we're good to go (it works with 120 or 220 volts).
So, even though we might still have to bring a mess of cables (some cables are dedicated to one specific device) not having to bring all those power blocks fantastic.