A test flying taxi recently flew over Singapore's crowded waterfront, eventually expecting to lead to normal air service in traffic-choked Asian cities.The 18-prop German-made chopper may soon regularly carry passengers.

Volocopter has already successfully tested in Dubai, Helsinki, Germany and Las Vegas. Singapore may be among the first to get the regular daily service within two to four years. Fares are expected to be moderately higher than charged for earthbound taxis. However, the dangers of the new air taxis and delivery drones accidentally hitting other vehicles and people have yet to be considered by local officials and eager lawyers.

I know Southwest frequently offers special deals, but it seems every time I need to book, there are no cheap SW flights in effect. TSF, Roanoke VA

A: Of course, the first rule for best fares is not to book to fly on busy weekends, and never on holidays, when airports are jammed. And be willing to fly late night, so-called red eye flights. Before booking, always comparison shop online and/or with a trusted travel agent. Airlines routinely match one another's fares on competing routes, and you’ll find Southwest isn't always the cheapest.

There may be a better deal or flight schedule on another airline, or snag a Southwest deal one way and a deal on the return on a different airline. Search on airline websites, travel search sites like Google Flights and online travel agencies like Priceline and Expedia. Southwest tickets can only be booked on its website, or through its reservations center (800-435-9792).

Selfies while traveling can be fun. Smiling in front of the Eiffel Tower, hugging at the Trevi Fountain and strutting in front of the Kremlin are all ok. However, if you’re on a cruise and climb up to point your camera or smartphone while standing on the ship’s railing is a no no.

Despite warnings, a couple did it while on a recent Royal Caribbean cruise. They were kicked off at the next port and had to pay all return home expenses. Additionally, Royal Caribbean banned them from ever sailing again on the cruise line. Simple solution: With or without your smartphone camera, when traveling, always be aware of personal dangers you may encounter, aboard cruise ships, high buildings and elsewhere, and follow all safety rules.

Seniors who enjoy memories of past tours and/or are planning new ones will enjoy seeing the famed travel guru’s 118 selections. They include France, England, Germany, Spain and many other popular destinations. www.usatoday.com/picture-gallery/travel/destinations/2019/02/11/rick-steves-european-favorites