Sore Knees from Kneeling too much? — try this:

I had to change a flat tire on my car last week, in the rain and at night.  To make the situation more pleasant, I thought of placing a new plastic bottle of 5W-30 engine oil under each one of my knees.  It was great! Anywhere you have to kneel, it really helps – the backyard, or even at church – if you enclose them in cloth covers.

Everything that you would want to know about Knees at Dictionary.com — Click Here or Click the Next Line

http://dictionary.reference.com/browse/knees?s=t