Free-Standing Shelving?

Free-Standing Shelving?

I live in a fairly small 1 bedroom apartment. As such, I'd love to be able to utilize all the space that I can and this includes the walls. Right now everything is pretty much just everywhere. What options are there out there for shelving that doesn't attach to a wall? Or options where I won't have to drill into the wall or such? More than likely it won't hold anything extremely heavy - maybe wig heads, wigs and a few stuffed animals. Though I wouldn't scoff at being able to put heavier things on such shelving too :) Thanks!
My Room

My Room

It’s lovely, but what the heck is it??

It’s lovely, but what the heck is it??

Early Gerbera Blooms

Early Gerbera Blooms

Plant ID

Plant ID

Problem peas

Problem peas

Because I have this need to show off :-)

Because I have this need to show off :-)