I am horrible at remembering birthdays. This would help! Family Birthday Sign by PrettyHomeStuff on Etsy, $45.00
The Ultimate Guide For Organizing Your Home Room By Room - 90 Revolutionary Tips and Tricks we could do it with portion sizes too
Chore charts! Include in tidying up...it teaches them responsibility and self-discipline. Use pictures rather than words for very young kids who can't read yet. Don't forget to make cleaning up FUN!!