Going to Hawaii is never cheap. Even if you score a good price on airfare, the hotels and food can cost you a month’s salary alone. But you can still do Kauai on a budget with these money-saving tips. Here’s how I was able to save money on the island. If you do have a little room in your budget to splurge, I highly recommend you check out some of these kid-friendly Kauai resorts that will provide tons of entertainment for the whole family. Kauai on a Budget: Rental Car The first one will cost you a few extra minutes, but can potentially save you a couple hundred dollars. I…