Many of us travel with only carry-on luggage, no checked bags. Doing so gets you through the airport (and customs) faster at your destination. As for my wife and me, we each take a backpack (“personal item”)and a roll-aboard.
Some airlines can get rather picky about the size of your personal item, but this backpack should pass their scrutiny.
This $25 backpack, discounted to $9.99, has a pocket for a laptop or tablet, and the price is certainly reasonable…with free shipping if you have Amazon Prime.