You could spend your entire trip in Italy and still not see all of the good stuff. I suggest that you try anyway. If you do, please, please try to visit Lucca. Nobody ever does, and it’s starting to bug me
Travel is always more fun with companions.
Europe is, by and large, fairly safe. That is, you needn’t fear for your life or even your well-being so much, but your wallet may be another story. Big cities are, as ever, more likely to be dangerous.
Stay in hostels if you’re on a budget.
Don’t talk loudly in public. You probably don’t think that you do anyway, but you’d be surprised.
Learn a few basic phrases, and use ‘em. Your efforts will doubtless be appreciated. There is, by no account that I’ve heard, any pleasing the French, so don’t worry about them. There is only so much that speaking slowly can do.
Listen to how other people pronounce their words.
Watch the currency exchange rates, and only exchange currency on favorable days. The Euro has been in a bit of a slump, but it’s clawing its way back up.
Most restaurants include your tip in the bill.
Generally, the farther you are from points of interest, the less money your meal will cost.
In Italy, at least, don’t expect fair pricing from street vendors unless you’re shopping with a local. There is no way that you can avoid coming across as a tourist, and those prices aren’t fixed.
Don’t be surprised if line behavior differs. Germans tend to be orderly about forming lines, but Italians and possibly the Spanish advance through a roughly-defined line with good strategy and lots of elbows.
Get lists of all the emergency numbers for the areas that you’ll be in.
Always keep a pocketknife with you, even if it’s a little one.
Have some water and snacks handy.
Keep a small first-aid kit nearby. Bring a small roll of duct tape. Bring a couple good books.
Find a place that sells parachute cord and buy yourself some. With a breaking strength of 250kg, it’s pretty useful. Can be cut into pieces. Be sure to fuse the severed ends with a lighter.