Happy President's Day !!

Whoo hoo !! It's President's Day !!! My favorite day of the year !! My god, what if that were true ? That would really be sad,I think. But here's a question, does this day celebrate ALL the Presidents ? Or just Washington and Lincoln ? Because if it's just Washington and Lincoln, then that bastard Jimmy Carter has some explaining to do...He's had me mow his lawn every President's Day since 1981, and he tells me that it's my "tribute" to him on President's Day...He says that someone waxes Ford's car, someone skims George Bush Sr's pool, and someone "polishes Clinton's doorknob" whatever that means....But I have felt for the last couple of years that he's making a fool out of me...Has anyone else heard of these traditions ?