We live in a culture where there's lots of nit picking, that is, people looking to find fault in things. I looked up that expression to see where it came from. I was not surprised; the tedious task of picking lice and their eggs, the picking of nits.
I know a family who has head lice in the household, and the expression is apropos.
And, by the way, when kids accuse others of having the "cooties", cooties are body lice.
People are saying that today starts a new decade. I am not sure if I agree. It is my understanding that 2001 - 2010 is a decade, and 2011 - 2020 is another decade.