Beware of veiled fees, etc.
In case the charter business has to top-off the petrol tank after your returning the vehicle back, you might shell out an incredible rate per gallon. Every time, ask that the vehicle be topped-up up preceding your departure, and then bring it back filled with gas. Also look into additional fees idea from steve

Airport charters are best to refrain from.
In case you’re on an official trip, many times you can rent a car from the hotel where you’re put up. In case you can conveniently get a hotel shuttle or public transportation from airport to front desk, probabilities are high that you would save funds taking delivery off the airport desks. angle submitted by Paul

Avoid the cover
They’ll tell you their indemnity closes high-priced glitches; which may or may not be accurate in your case. They will tell you instances about how someone’s auto insurance/credit card did not shield costs in the course of a recent smash up. angle submitted by Doug

In less important offices, reserve the smallest probable automobile
You’re also not likely to make this strategy work beyond USA. The remainder of the planet generally prefers very small, gas-efficient automobiles.