With the change in my living situation this summer I have been keeping collars on them in the house more regularly. Especially if I am not home with them over a weekend (often my two and I will leave on the weekends) because I don't entirely trust the people I live with to be hyper-aware of closed gates/doors/garages like I am. Already I've found all of those things left open once, and now I am a little paranoid about something happening.
But normally, in a normal living situation, because I have four dogs who play rough, I feel that the risk of somebody getting caught in a collar is generally greater than the risk of any of them getting loose. So they don't tend to wear collars around the house normally. I like the idea of them having ID on 24/7, and I hate when I find a loose dog with no ID, but I really worry about something happening in play when they wear collars all the time. It's been a struggle for me to leave them on them regularly in the current house.
And they always wear collars with ID away from home. The Dobes are both tattooed also, Dance is tattooed and chipped, and Journ is chipped. I don't trust the security of non-clearly-visible ID, but at least it's there.