don't forget your sunscreen lotion and a good map!
convertible duffel bag or backpack that you can easily carry. take just the basic things/clothes with you. Sinaia is a mountain resort and you really do not need fancy clothes here if you plan on hiking and just seeing the main sites of the city. good comfortable hiking shoes; get a pair of canvas shoes as a backup. I always like to have a good pair of hiking boots and a pair of sneakers or canvas shoes just in case I need to wear something lighter or if the hiking boots get wet/dirty.
If you visit during summer, make sure you have a baseball hat with you to protect your head from the sun. Have a light sweater with you just in case if you visit during summer. It gets chilly in the evening especially if you are caught at high altitude.
If you go there during winter, make sure you have a jacket that is windproof and warm. Don't forget your hat, gloves and scarf. Winter boots are a must! Make sure they are warm and comfortable. you can get all you need from Sinaia. Just make sure you have them with you if you go hiking and if you plan to sleep at one of the cabins up there. It will not be fun to have to go back to Sinaia just to get some deodorant, a band aid or sunscreen lotion, so make sure you have these in your bag. polarized lenses/filters are good to have especially if you take pictures during the day. Take lots of film, batteries and large memory card (if you use a digital camera) as they are expensive to buy. If you are up in the mountains, you may end up going to town to buy what you need. Buy a map of the area once you arrive in Sinaia, especially if you plan on doing some hiking on your own. The trails are well marked, but a map will also help you not to get lost and to stay on track. If you go hiking, make sure you carry a bottle with water. You will get very thirsty once you start hiking, especially if it is hot outside.
DON'T FORGET YOUR SUNSCREEN. YOU CAN NOT BELIEVE HOW EASILY YOU CAN GET SUNBURNS UP IN THE MOUNTAIN OR EVEN IN THE CITY!

JumpingScott,VTer shohman, Chicago, August 2010
JumpingJONTHEOBALD, Grand Canyon, Arizona
JumpingJORGEC25, Stockholm, Sweden
JumpingMARIE, VTer Auspinay and son in Vigo, Spain