If I make tonight cupcakes,decorated sugar cookies, brownies for an Easter basket, how should i storage them?

As I said, I’m gonna make tonight or tomorrow decorated cupcakes, cookies and brownies for an Easter gift to give on Sunday. How can I storage all of them already decorated? Refrigerator in plastic containers? Or cookie jar will be enough for the cookies? how about the brownies and cupcakes? I want to have them ready to pack 1 day before.