Fido always has a topknot, if he tryes to rub it of then i just say NO! , he understands it now that he can not rub it out
He can go a whole day now without me having to fix it
I use rubberbands sometimes , but i try to use these soft ones (they dont ''cut'' the fur as much) daily.
(I hope you understand me, I'm Icelandic and not perfect in english)