Using these balloons is easy. First, decide if you want to fill them with helium or air. If you're using helium, you'll need a helium tank. For air, you can blow them up by mouth or use an air pump. When inflating, make sure not to over - inflate the balloons to avoid popping. These balloons are great for decorating. You can tie them together to create balloon arches or hang them from the ceiling. As for storage, keep them in a cool, dry place away from sharp objects. If you have any unused balloons after your event, deflate them carefully and store them flat for future use. Remember, these balloons are biodegradable, so when it's time to dispose of them, you can do so without harming the environment.