Safety Tips for Traveler's Solo or otherwise. (This is not intended as legal advice, seek an attorney for that.)

Know how long it takes and how much it costs to get from the airport to your hotel or to the city center. Solo travelers are more likely to be "taken for a ride," so ask the taxi driver how much it will cost before you leave. If it's considerably different from what you know to be true, take a different cab.

Find out if hotels at your destination are open late, so you don't end up sleeping in your car or worse.

Be your own best counsel; if it doesn't feel right, don't do it.

Carry good identification, in more than one place.

Keep to open and public places, especially at night.

Exude confidence and walk purposefully.

Avoid appearing like a tourist. Ditch the Disney T-shirt and don't walk around with your face in a guidebook.

Don't draw attention to yourself by wearing flashy clothes or jewelry.

Lie a little. Not only can you invent your own persona or history, but you can also make your life easier with little white lies. When asking directions, don't let on that you are alone: "Can you direct me to the restaurant? I have to meet a friend."

Check your maps and transportation schedules before leaving your hotel/train/rental car/tourist office. A  traveler looking over maps can be a mark for unsavory types.

Trust Everyone and No One
One of the best reasons to travel alone is to meet new people, but this also makes you more vulnerable. It's okay to hang out, travel and share with new friends, but you might not want to ask them to hold your money. Scam artists can often be the most charming companions you'll find; you want to be open-minded, but keep your guard up enough to ensure your safety.