It might be nice to have a place to put a group of files
that are related and transportable.  Here an old freezer
basket was used to serve this purpose.  Most people
probably don’t have an old freezer basket hanging around
but you might have something else that works really well.

Sometimes rolling clothes is the perfect option for
interestingly sized spaces.  Rolling these long sleeve
t-shirts allows more shirts to be stored and makes
them easier  to access than if they were folded.

This box grater and hand blender are
placed inside a rarely used casserole
dish.  The casserole dish has a home
and grater and blender have a reserved
spot. Sometimes it is easier to hold a
spot/home for something if the home
is defined in some way.

Sometimes it is hard to reach the back of a dresser drawer.
One option is to use that space for items that are accessed
less often. For example, winter socks can be stored there
in the summer and light socks can be stored there in the
winter.