Minor Advice From A Tightwad Traveller.
Do all your addresses for post cards up on labels before you go. That way the Postcard from Rome won’t be so irritating when you have to fill out the 32nd Wish you were here* card. Buy a shitload of postcard stamps at once so you don’t have to worry about them again on the trip.
Learn the basics of the langauge of the country you are going. Don’t be afraid of mistakes. Any effort made in front of a local will be tolerated nicely. They appreciate the effort. Learn how to say, " I speak lousy Italian and even shittier english…" Meine Deutsche ist nicht so gut. Meine english ist nicht zu gut either. It is ok to mix english in where ever suitable. Life is like a mad lib with charades.
You may want to invest in either two way radios (possibly $40 or so, borrow them as well.) or see if your cellphone will work from Europe ( even if you can only text message each other) in the event you become seperated. Sometimes you can upgrade your cellphone plan for this to work. (If you can, take a charger.)
If you don’t have cells or twoways, every morning you need to decide a meeting point & time in case you become seperated. Wasting hours looking for someone and worrying is not anyway to do a vacation, my friend.
A 35mm with a hefty memory card is your best friend. wow, have times changed. Investing in two sets of rechargeable batteries and a charging unit will save you loads of cash.
The one routine we are religious about when traveling is that we eat breakfast at the hotel ( usually a continental meal.) every morning, rather than scrounging about looking for some place to eat. There is comfort in routine. The rest of the day we wing it. (Take along a couple of empty ziplocks to stuff with the wonderful rolls and breads from breakfast. These are excellent quickie snacks when you need it.)
Make copies of your passport and keep them in your luggage. Also, it would probably be prudent to leave a copy of everything ( passports, credit cards, driver’s liscense, health care cards…etc…) with a Parental Unit back home.
Find out from your insurance what the procedure is for medical needs whilst overseas. While you may not have the heart attack while you are over there, it can make the difference between suffering through the cold you caught on the flight over and going to a local doctor to find out it is a raging sinus infection, might make your trip far more enjoyable.
Avoid the McDonalds et al while traveling. Are you in Rome for a Big Mac or local cuisine?
Most Important: Comfortable Shoes. This is not the time to buy new shoes the day before the trip and break them in on your vacation. Sore feet ruin many a day.