Stockholm's sites and attractions are numerous and outstanding. My favorite place to go is Stockholm's lovely preserved Old Town (Gamla Stan), and its 16th century buildings, church spires, narrow cobblestone streets, quaint shops and great cafes and restaurants.
Other notable attractions include The Royal Palace, The Royal Cathedral, the Vasa Museum (which has a preserved Viking ship from 1628), the Skansen Museum (a popular outdoor museum), Kings Garden, and countless other museums.
Stockholm must be seen from the water. Be sure to take a boat tour. They can provide a time to rest from all the walking, or an escape from bad weather. There are many different lengths and itineraries of tours available, and there are many departure times. There is almost always a boat leaving within 15 or 20 minutes or less.
Don't miss shopping and dining in Old Town. Old Town is rich in history and culture. It is quaint with narrow, hilly cobblestone streets that are lined with small shops of every sort, and great restaurants. Gamla Stan is also home to the royal palace, where you can see the Royal Guard up-close and watch changing of the guard....All one subway stop from the downtown Sheraton and Radisson Hotels.
In summer, the people of Stockholm come alive...the people have a new attitude....they are smiling and they talk (although Swedes are friendly and good natured in all seasons). They love to take advantage of the mild weather and long summer days, by spending lots of time outdoors.
Quick Tips:
When checking out of a hotel, I apply any remaining local currency to the bill and pay the rest with credit card to avoid bringing home small unexchangable amounts of currency.
Prices in Sweden include a 25% tax. Learn the rules for a tax refund when you leave the country. The merchant seals your purchase, and to get your tax refunded, go to the tax refund/currency exchange at the airport, show them your completed forms and sealed purchases, and they will refund your tax.
Wear sturdy walking shoes. Stockholm is very accessable by foot and using the trains. The cobblestone streets of Gamla Stan are uneven, the terrain hilly, and both are tough on the feet.
When you enter a place of business or public service (ie, bank), before you get in line, look around and make sure you aren't supposed to take a number, as this is common practice in Sweden.
If you want a cash advance using your credit card at a bank or currency exchange, be prepared to show your passport. This formality is not necessary if you use ATMs, plus there is no currency exchange premium, or it is minimal.
Best Way To Get Around:
Skip the rental car. The subway and trains are cheap, efficient, clean, safe, and provide much local flavor.
A 3-day pass for the subway, trains, and buses is 135 Kronor ().
I take taxis between Arlanda airport and downtown Stockholm to avoid shuffling baggage on/off of trains. Ask for fixed price to/from Arlanda airport (around 400 SEK/). You can save a lot of money by taking the train.