I was using pscp (PuTTY scp) to copy a tar backup from a Windows machine to a Linux one. I wanted to check on the progress periodically, but didn't want a scrolling wall of text (which is distracting when you're trying to play Skyrim on another display) and didn't want to have to keep running a command over and over (having to take your hands off the controller is also annoying).
This is the best I could come up with for the time being:
for i in {1..10000}; do
clear;
print $( du -hs /data/dbb_persephone_20140401.tar );
sleep 10s;
done