My dogs only wear their collars when off the property or actively training.
I use a harness for my poodle. For my GSD I use a flat collar, Halti, and prong. I use what I get the best results with
Jasmine - Female Miniature Poodle - born Aug 15, 2010
Loker Delgado Von Stalworth - Male GSD - born Jan 26, 2012
Koda & Zazu - 5 year old male cats
Alex - Male Cocker Spaniel (rescue) - RIP Cuddlebug 2007-2010