Two slightly different versions I found, both Source unknown:
"If you sleep on it - make it up.
If you wear it - hang it up.
If you drop it - pick it up.
If you eat out of it � wash it up.
If you step on it - wipe it up.
If you open it - close it.
If you empty it - fill it up.
If it howls - feed it.
If it cries - love it.
or:
"House Rules
If you drop it - pick it up;
If you sleep on it - make it up;
If you wear it - hang it up;
If you spill it - wipe it up;
If you turn it on - turn it off;
If you open it - close it;
If it rings - answer it;
If it whines - feed it;
If it cries - love it. "