Be ready to pay more for everything in spite of initially lower prices. Merchants start increasing the price right before you are making a purchase. That’s why you should insist on the initial price whatever; there is a good chance they’ll run after you and meet your price.
When renting a vehicle, don’t opt for the cheapest one. You can evidently save on air conditioning which you will regret a lot afterwards. Because you will be covered with street dust and mud shortly afterwards.