In high-ceiling rooms, such as mine, there is normally a lot of wasted space overhead. Hanging things can help utilize that space. Hanging things also keeps them visible.
I set iron rings in my ceilings and walls and use them to hang things directly. The rings can also be used to hang pipe or chain from which to hang things.
"S" hooks and rope loops are two ways to hang things from attachment points.
Step 1: Rings, Chain and Pipe
To give me more attachment points for hanging lighter things, I welded up some big-link chain and hung it from ring to ring. Each link provides an attachment point for hooks.
Horizontal pipes can also be suspended in the air from the rings and used to hang things.