"Because " rather than "Because of ".
The use of adjectives instead of nouns, eg crazy rather than craziness. Amar in Bing Bunny pisses me off when she encourages them all to shake out the crazy.
Verbs being used as nouns eg invite instead of invitation. I fully acknowledge that IABU on this because examples like this will be the most common form before long and my preferred usage will be the antiquated one.