What is the most logical next event?

How to ship packages from home
Choose a suitable box and pack your item (s).
Your box should fit your item (s) well. It shouldn't be too large, but there should be space for padding on all sides of the item (s).
For padding, you might use newspaper, packing peanuts, bubble wrap, and so on. If you don't have a box, you might be able to salvage one for free from you workplace.