It's great to travel with only a small bag. Because you won't check luggage, you can get through the airport faster on both departure and arrival. Without a big suitcase, it'll be much easier to walk between your airports and taxis and hotels.

And you don't have to worry about your bags getting lost. (Over the twenty years I've been traveling, my bags were lost twice. Once it took only a few days to get them back, but once I had to wait a month!) About 1% of checked airplane bags get lost, damaged, or stolen. A small bag sets you free to travel without worries!