One of the worst things is having to leave behind some of your belongings because they won't fit in your suitcase. (hercampus.com)
But then when I get to packing I always want to take more with me than I can actually fit in a suitcase. (modlychic.com)
I know I could have bought stuff before I left, but presents for all my family would never be able to fit in my suitcase on account of all the gym clothes. (exsloth.com)