My Mom Is Always Right

She may not have made these up herself, but she uses them better than anyone else:

"Common sense is not so common."

"Don't piss on my leg and tell me it's raining." (This one was from Judge Judy but my mom says it, too)

"Waste not, want not."

"98% of people are schmucks." (This was something her friend's dad said. He was a CPA, she always makes sure to mention)

And the grand finale of rightness:

"You're pretty lucky."