Is it necessary for couples to take two suitcases when they go out to play? I think one is enough.

Look how many days you've been playing! If it's only for a day or two, one suitcase is more than enough, but if you want to stay for a few more days, you'd better take two! But the most important thing is that the suitcase must be strong and durable, otherwise something happens on the road and the suitcase is really not in the mood to play!