Can any moms tell me what's necessary?

This is my first baby and i want to be fully or atleast somewhat prepared.

Are these necessary?

- Wipe Warmer

- Diaper Genie

- Humidifier

Keep adding if you have anything that you think is necessary. Of course the obvious diapers, wipes, bottles, clothes, baby shampoo/bodywash, lotion, blankets, mittens......