What type of collar do you use for your dog?
Do you leave it on all the time? Or just when the dog is out of the house? (Obviously it’s not safe to leave collars on dogs in crates.)
Is there any collar you refuse to use, or hate when other people use?
Now that microchipping is becoming so popular and affordable, are collars becoming obsolete?
I usually leave my dogs’ collars on, with the exception of my standard poodle. I worry that his fur could get matted with the collar rubbing on it all the time, and so I leave it off a lot unless we are going somewhere. I was just wondering what everyone else thought about collars. 
To clarify, I don’t mean collars obsolete as in not having a dog on lead, I meant it more as ‘for identification’ purposes.
Obviously dogs should always be on the leash when not in their yard/home.
You people can be so nitpicky sometimes. 
all of mine wear LUPINE. it’s gauranteed forlife even against chewing. and i use the combos, so once they’re on, they’re on. except for the 2 that are crated. for now they have the regular Lupine with the clips.