Basicly, you just have to pack things to occupy your self, and clothes,shoes,toothbrush,blanket,activity,blanket, and under garments
If you pack it properly, of course! The only problem might be that your destination - such as another country - might not allow you to enter with it.
to pack one's suitcase is translated 'faire sa valise' in French.
sun cream!!!
Evacuees would obviously put everything they needed in their suitcase and maybe a memory from home.