I Have to Do It Before Christmas Eve

I have four days until my travel. I haven't packed my stuff in my suitcase yet, but I need to do it as early as possible. It's because I have to buy another suitcase if I need it. I should make sure if I can pack all of my stuff before I decide to buy a new suitcase.  However, most stores close on Christmas and close earlier than usual on Christmas eve. That's why I need to decide if I need to buy another bag tomorrow. Maybe I will buy a super light suitcase so I can put in more of my belongings. I have checked that T.J.Maxx closes on Christmas and closes at 6 p.m. on Christmas eve.