Consider packing a digital luggage scale for your travels.

"It's about the size of a corkscrew and with baggage fees and everything — especially when you're traveling abroad, sometimes the international carriers have different rules for their domestic carriers within a different country, so I always travel with it," Banas said.Overpacking can end up costing you some hefty fees. In order to avoid this, BBC deputy travel editor Anne Banas suggests investing in a digital luggage scale, something that she never travels without.

"And the one I have you can switch from pounds to kilos, and I always weigh it when I leave home, making sure it's under, and then once I'm traveling, in case I pick up souvenirs, so I know I'm not going over that baggage limit because that can cost you a lot of money."