My international flight to Los Angeles was delayed for 10 hours. The airline didn’t tell me I was eligible for compensation, but a friend told me about an app called AirHelp. I entered my name and confirmation number. Instantly, AirHelp told me the airline was obligated to pay me about $700. AirHelp did all the work, and about a week later I got the money, minus a 25% commission for AirHelp, which was a small price to pay for not having to do anything. — MF

There are occasions while traveling that you want to enter a country with a one-way ticket, but that country requires an onward ticket to enter. This is a job for Best Onward Ticket which will sell you a legit onward ticket that you use only to get in and then they cancel after 48 hours. It costs $12. Much easier than booking a ticket yourself and cancelling because it avoids byzantine fees and hidden charges. I have not personally used this service yet, and other similar services in the past have gone belly up, so buyer beware, but this outfit gets good reviews and I find the hack useful so I’m mentioning it. Let me know if you’ve tried it. — KK

Hopper is a smartphone app that predicts when airfare to a desired destination will be the cheapest. I’ve set up an alert for Chiang Mai, Thailand. About once a month Hopper sends me a message with the best price it can find, telling me to “wait” or “buy.” The price recently dropped from the $900s to the $500s and Hopper said “buy.” — MF

The Basetrip provides essential information you need when traveling internationally. Just enter your country of origin and your destination and the site will tell you the currency exchange rate, mobile phone service options, the crime rate, electrical outlets, drug and prostitution laws, and more. For an extra $5 per trip, you’ll get passport & visa information, travel advisories, and language phrases with audio pronunciation. — MF