If you have been travelling abroad frequently you must already be aware of the fact currency cash exchanges can prove quite expensive and cumbersome. When you exchange your money into foreign currency, you’re committing yourself to carry large amounts of cash overseas which can be risky or simply awkward. In addition to that, if you underspent you are going to go back home with foreign currency and have to bother yourself to exchange it again (and lose even more money on fees). For business traveling, cash is one of the worst solutions there are.