Do not forget...
... that Rome has an excellent Outlet, Castel Romano Designer Outlet, located approx. 15 km. from Rome's EUR district. Visit their website for further information on designers, driving directions and the possibility of booking a seat on the shuttle bus from Rome.
... that if you need to buy Italian food such as oil, parmesan cheese, coffee, etc. it is best to simply find an ordinary supermarket. Italian supermarkets are almost always very well stocked, most of them have sections with fresh bread, cheese and charcuterie, and it is far cheaper than the fascinating delicacy shops located around the centre of Rome.
... that sales in Rome normally take place in July and January. In July you can find the year's summer collection at least 30% cheaper, and in January, it will be the winter collection that will be on sale. If you have the nerves to wait, remember that most shops start with 30% off and a few weeks later set their prices even lower, sometimes up to 70%.
... that it only takes 1 hour and 40 minutes with the Italian express train from Rome to Florence. Florence can easily be seen in one day, so you do not need an overnight stay. The same applies to Naples. New high-speed trains makes it even faster to reach Naples. It takes only 1 hour and 10 minutes with the Eurostar Frecciarossa.
... that you need not run around with an unhandy fold-out map of Rome. In newsstands and bookstores you can buy a "stradario tascabile" of Rome for about 10 euros. It is a small book that covers all areas including the suburbs of Rome and where you can find everything in the index. The book is far more accurate than the standard maps, so you can find even the smallest vicolo.
... that you can go to the beach when you're in Rome. From metro stations Piramide, Basilica of San Paolo and EUR Magliana trains run several times an hour to Ostia. You can even get there on a regular subway ticket, and it only takes about 30 minutes.
... to get up early. A walk in the Roman streets and along the Tiber is quite another thing early in the morning before the tourists take in the city, and the Romans get on their way to work. Bring you camera. The light is fantastic at this time of the day and you will love the tranquillity and the feeling that the city is yours alone.
... to enjoy life and take things easy. Rome is best when it is lived, as the Romans live it. Choose those tourist attractions that really interest and fascinate you, and visit them, because you want to, and not because you have to.