Mount Point Sorting?

Dear Gurus,

Could it be possible to have the output of df -k sorted? The df -k output messed up after recent power trip.

Also, is there any folders that I should look into to reduce the root size (other than /var/adm and /var/crash) after server crash?

Many thanks in advance.

Warmest regards,
HM

Ad hoc:

[root@leonov] df -k -h -x tmpfs | sort -r
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda4             375G  211G  165G  57% /home
/dev/sda3              10G  3.9G  6.2G  39% /
                      233G   12G  221G   6% /media/100_ftp
//172.16.1.100/c$/SFTP
//10.0.0.205/work      72G   56G   17G  78% /media/205_nas

[root@leonov] df -k -h | head -n 1 ; df -k -h | grep -v "Filesystem" | sort -r
Filesystem            Size  Used Avail Use% Mounted on
udev                   10M   84K   10M   1% /dev
tmpfs                 2.0G     0  2.0G   0% /lib/init/rw
tmpfs                 2.0G     0  2.0G   0% /dev/shm
/dev/sda4             375G  211G  165G  57% /home
/dev/sda3              10G  3.9G  6.2G  39% /
                      233G   12G  221G   6% /media/100_ftp
//172.16.1.100/c$/SFTP
//10.0.0.205/work      72G   56G   17G  78% /media/205_nas

Hi,
Could it be done by re-positioning the mountpoints at /etc/mnttab for permanent fix?