Recipes on blogs that you have to scroll for 5 minutes of life stories before you actually get the bloody recipe ingredients and method!! oh so annoying
Yes! Particularly when it's an American one, say for cheesy barbecue chicken and you eventually find the find the ingredients and method after scrolling for days only to find something like,
1 cup cooked, shredded chicken,
1/2 cup grated cheese,
1 cup Aunt Fanny's authentic olde time cheesy barbecue chicken seasoning mix,
Chopped cilantro.

My petty things include,
MIL adding an extra s to the name of the company DH works for, for example his company is Mars Bar, she calls it Mars Bars.
People who offer me a Coke when they in fact they are offering me Diet Coke, Coke Zero or even worse Pepsi Max.
DH and DC sucking on water bottles all day.
DH in the evenings partially removing his socks but leaving them on the toes like little hats.
DD leaving trainer sock donuts all over the house.