25. The system of claim 22 , wherein one or more of the triggers comprises arrival of a predetermined date.
22. A system comprising: a display unit; one or more processors coupled to the display unit; a memory storing instructions executable by the one or more processors, the instructions comprising instructions to: receive one or more inputs creating a personalized avatar; receive one or more inputs creating one or more triggers; associate the one or more triggers with the personalized avatar; detect an occurrence of one or more of the triggers; and display on the display unit, in accordance with the detected occurrence, the personalized avatar, wherein creating a personalized avatar comprises modifying an existing avatar based, at least in part, on a composite of previously created avatars.