Are you one of those people know as serial plant killers?! (chuckles) In all seriousness, if forgetting to water the plants sounds like something you’ve done times and times again, but you still want to have something green in your home, I’d suggest that you get one of the hardest to kill plants, namely the mother in law tongue plant.
Source: http://onlineauthority.com.au/taking-proper-care-of-mother-in-law-tongue-plant/