@Nautigal- I figure the string is right there on his wrist in plain view, not tucked away in his backpack like his homework is- the string he can't help but see, would remind him of that homework tucked away in his backpack.. and it's common to put a rubber band on your wrist as a memory tool especially when you have problems remembering things.. I don't want him to smack himself with a rubber band, so I was thinking a string would be better
Sorry, speaking for myself, and facetiously, there.
I would forget the string was there at all, and if I noticed it, would then ask myself what the heck that was for.
