You should not travel to a foreign country, for even a day, without Medical Insurance.
Converting from one currency to another can be wrought with fees and charges. On 5 July 2016, $1000. Canadian would get you $753.86 if you went to one of the major banks. The same amount would get you $757.55 at a major currency exchange broker and $766.40 at another. A $12.54 difference so it pays to shop around!
If you do a lot of spending in the States, you may be considering getting a U.S. dollar credit card, which will allow you to spend in American currency and avoid foreign transaction fees. Currently, all five of Canada's major banks offer a U.S. dollar credit card.
If you own a home at your Snowbird destination and bank in that country there is a good chance that your foreign bank will issue you a Credit Card. They may ask for your Social Insurance Number or, in the case of a U.S. Bank, your ITIN.
If your travel includes a night or two at a hotel there are endless choices along all of the major U.S. Interstates. Most now offer Full Breakfast with room and many are including a Happy Hour with complementary drinks. In addition to the popular travel websites check out the hotels own website for special pricing and discounts.
Almost every conceivable type of restaurant can be found along the U.S. Interstates.
The following site lists all the Fast Food Restaurants by Interstate.
iExit is a popular smartphone App. It tells you what is ahead at every Interstate exit. It also includes real-time gas prices.