Answer:
A disposable item to keep your waste organized.
People in love are often bound to this.
What has black spots and a white face, is fat not thin, and helps you to win, but tumbles all over the place?
It belongs to you, but other people use it more than you do. What is it?
What has a head yet it never weeps, has a bed but never sleeps, can run but can not walks, and has a bank but not a cent to its name?
It's what light turns into in the night