if there's something one absolutely does not want to forget to bring with him/her when s/he leaves the house, it's all well and good to write notes and tape them around or even write reminders on one's own hand, but one can still get distracted from reading those notes somehow. there is one surefire way to not forget to bring that bag, present, ticket, envelope, or whatever it may be:
to put it in front of the front door itself. if one can't leave the house without tripping over something, that something is sure to be in one's hands while opening the front door, to leave.
tune in tomorrow.