A standard closet is 22 to 24 in. deep, with the closet rod set right in the middle. That allows most clothes to be hung with a little extra room in front and back.
In that same standard closet, the closet rod is installed 66 to 68 in. above the floor. But that’s one of those standardized compromises that often proves inconvenient and wasteful.
It’s a compromise in the sense that it presumably allows people of a wide range of heights to comfortably reach a hanger. And it’s wasteful in that, often, the shelf above the rod is only partially used for storage. There may be up to a foot of empty space up there.
What you might want to do is, in effect, move that empty space down to floor level, where it will more likely get put to good storage use. How to perform that bit of magic? Move the closet rod up.
Now, you may not want to do this in every closet. Shorter household members need to be able to hang up their clothes. But in closets used by people who are taller than average, or who don’t mind reaching a bit higher, the closet rod can be moved up to a height of 75 to 85 in., thus opening up enough room at the bottom of the closet to install some shelves or stack some plastic storage containers.
Closet rods are usually easy to install. Round wood closet rod stock and mounting hardware are usually available at home improvement stores. Installation is easy. Attach 1x4 boards to the side walls, with nails or screws driven into studs. Attach the rod hardware to the 1x4s, and then install the rod.