How about the best chocolate chip cookies ever:

https://sallysbakingaddiction.com/chewy-chocolate-chip-cookies/

Potty training, make sure he can pull his pants up and down by himself, as well as any coat / jacket. Practice using polite words. Play games that require taking turns. Practice putting on and taking off shoes by himself. Have him pick a calm down method (blowing out birthday candles, etc) and know when to use it.