I bought these ClosestMaid ShelfTrack 40″ wire shelving brackets (2) and anchored them into the studs on the wall (each was about $9).  I wanted to be able to adjust the support brackets at any height.  The support brackets came 2 in a pack and were about $7.

Sometimes I use fabric for backdrops and they’re not always the same length.  I also bought 1 1/2″ PVC pipe and used packing tape to attach this Valentine backdrop. I can store them like this or stand them up in the corner.  I love having options, lol.  I purchased all these products at Home Depot (except the backdrop).