My dogs also keep their collars on all the time. Not that it's much good at the minute because they haven't got tags on them!
I was going to buy (chav) St George's Cross bone shaped ones (so they matched the house and cars!
) but I think the tags will have to be plain so I can fit all the engraving on - my surname, house number and postcode, my mobile number (won't put my house number so burglars can't check if I'm out!) and microchipped. I think that's covered it!
Next question - do the tags go on the same ring that you attach the lead to? Because if they do, I need to buy new colars too. The rings on these are so small it's hard to attach the lead sometimes!