5. Taking the "super" shuttle
Wait on the curb for a ride in a sweat-soaked van and risk being the last one dropped off on a nine-hotel run, all in the name of saving a few bucks?
Your time is worth more than that.
Adam Carolla brilliantly sums up this classic travel blunder in his book, "In Fifty Years We'll All Be Chicks."
"The shuttle is the worst $20 you'll ever save. It adds 90 minutes to whatever a Town Car or cab would have been. You have the unenviable choice between being dropped off last or being dropped off first and having a bunch of losers who can't afford cab fare and have no friends or loved ones with cars knowing exactly where you live."
6. Not tightening shampoo caps ... all the way
Those cute, little trial-size shampoo and conditioner bottles are really handy -- until they magically burst open in-flight, spreading a layer of glycerol soap snot all over your bag.
7. Thinking you know the perfect time to book a ticket
There's an art to reading the tea leaves of the airlines' protean pricing schemes, but there's some muddled science to it, as well.
According to Travelers Today, research conducted by CheapAir concluded that you can find the cheapest fares 79 days before domestic flights and 81 days before international flights. But Kayak found the optimal timing for a cheap-ticket purchase is 21 and 34 days before domestic and international flights, respectively.
Meanwhile, researchers at Texas A&M University simply found that Saturdays and Sundays are best for finding discount fares.
The golden rule?
There's no golden rule. Tickets are cheapest when they're cheapest.
8. Trying too hard to chisel out a bargain
There's no faster way to become embittered with the locals than going toe-to-toe with a market full of hungry sales people and shopkeepers.
Yes, we understand there's principle involved, but do you really need to whittle the equivalent of fifty cents off the price of an embroidered handbag that's going to sit in the back of a closet anyway?
Just buy the damn thing and spare your heart the cortisol burst for when it actually needs it.
9. Not changing money at the airport
When traveling internationally, the conventional wisdom is that only amateurs change money at the airport, because the exchange rate for foreign currency will be better in town.
It usually is, but often not by that much.
A recent check of the dollar-to-pound exchange rate in London Heathrow was $1.71 to £1 (with no commission for changes more than $300).
Near Oxford Circus the exchange rate was advertised at $1.62 to £1, also with no commission.
Using these rates, converting $300 at the airport would get you £175.43 as opposed to £185.18 on the street.
So, you can hit the city like a cashless bumpkin and spend an hour hunting up an acceptable place to change money or, for less than £10, arrive with some local coin in your pocket.
Convenience factor alone makes it worth changing at least a nominal amount of cash at the "ripoff" place at the airport.