Return the favour
Companies are your friend (or so they claim). That’s why they sometimes do you a favour or give you a nice perk. But some people feel this means they need to reciprocate, by buying something or tipping someone. And the bigger the favour, the more you might end up spending.
Hunting for the cheapest flight takes close monitoring of prices. Airlines often change prices based on factors like time of day, location and availability. Sometimes this means you could get lucky and find a cheaper flight, but other times you might be paying more than others.