Just catching up on the last few pages of this thread.
Italians are generally not huge on mixed drinks. You tend to find them as aperitivi, served early evening before dinner, but after that wine is still king. Before that, too, as we learned that most of the wine bars in the larger cities open up around 9am. Microbrew beer is starting to develop in the North, but (ironically?) their market is mostly export to the USA. Domestic consumption of microbrew, and beer in general, is fairly weak. I'm trying to get my hands on some here in Maine, because I hear the Italian brewers are really taking some of the wine principles and local herbal ingredients to the party, and the result is a beer that is distinctly Italian in style.
The whole AC thing probably has a lot to do with the power grid, and what I imagine is the higher price of electricity. I'll take the tradeoff that I had to use a card to keep my lights on, as I had a private rooftop balcony at the Albergo San Giorgio in Rome for under 250 Euro a night, and a room over a canal with windows that actually opened at the Splendid in Venice for the same.
Italian airports are generally some of the worst in the world, IMHO. Fiumicino in Rome rivals CDG for one of the few airports in the civilized world that needs to just be torn down and rebuilt. It's a clusterfuck. I have no other vocabulary to describe it. I couldn't do it justice if I tried. Go sometime and you'll know what I mean. But it does have one redeeming quality - customs is FAST because they really don't give a shit.
Ice. No idea, because I take most of my drinks at room temperature anyway. My family is literally off the boat from Italy, and they love ice in their drinks, but I never developed that taste.
Wine. There are theories that I've gathered, mostly from Italians I either met over there or over here, that domestic Italian wine is different from the product they export. They speculate that their domestic wine has far less sulfite content, which is why you might notice you can drink a ton of it and not feel like shit the next day. I have no idea if it's true.
That article about Zuckerberg not tipping. I'm not sure what the big deal is. When I was in Rome, I left a few euro tip because it made me feel better - since it's ingrained in me to tip in the US. To the best of my knowledge, the locals don't tip, or if they do, tip very little. If they want to have a double standard for Americans, that's their problem. A lot of these joints exist to extract money from tourists in the first place, so I guess they expect it. It helps to speak Italian and not rely on hotel concierges or guidebooks to steer to you food in the larger cities.
My tips for anyone visiting Italy for the first time are as follows:
1. Learn some Italian. You don't have to be fluent, but if you make an attempt, you'll be treated a lot better. Italians generally are not like Parisians, where if you end up trying hard and butchering the language, it's the attempt that counts. Learn how to ask for things, make a dinner reservation, prices, whatever. If not, just learn some small talk - how are you, nice day, do you speak English? Don't be shocked that a lot of people actually don't. Example: It's a flat cab rate from FCO to the city, cabbie spoke no English, but I was able to speak to him, and he ended up taking us on a 45 minute driving tour of Rome before actually heading in - based on what I told him about where the Roman part of my family is from.
2. If you like food, take a food tour the first day in a city. Find one on Trip Advisor. There'll be one in English, since they're entirely for tourists. You'll learn about the city's food history, some of the more notable or older places to go, and you'll meet a ton of people - both tourists and purveyors. From there, ask people where to get a good meal, and tell them you don't want a tourist trap. It's very much true in Italy, but everyone is your friend once you've spent a few bucks, so take advantage of that since you'll be spending money anyway.
3. Avoid FCO. For travel within Italy, use the train and stick to reserved seating. If you have bags, first class is worth the small increase, as you'll have more space. If you're going to Venice, be prepared for the train to NOT go all the way to S. Lucia. Even if it's scheduled to do so. It may very well stop in Mestre. From there, you need to take a regional or local to S. Lucia. It will be a clusterfuck since everyone on your train expecting to go all the way in is now stuck and running through a train station that isn't well marked in English. You can deal with that and grab the regional, or you can spend 75 euro on a water taxi directly to your hotel. The water taxi is kind of nice.
I'm sure there's more, but it depends on where you're going. Feel free to ask.