Hell, you can
get most of the good stuff on a 360K disk if you try hard
enough. One of my favorite tricks is to use ARK (K. Heidenstrom), which
is a .COM archiver and execution stub, to stick all the .COM files I
need into a single .EXE, then compress the .EXE with pklite or lzexe or
similar.
format.com,
fdisk.com, and
sys.com all go in there, as do a
4KB editor and other utils.