Choosing a pet ID tag for your Portuguese Water Dog is like purchasing insurance – you do it with the faith that you’ll never use it. The “possible cost” of not having a pet ID tag is more costly than the “real price” of purchasing the pet tag itself.
The kind of pet ID tag that you buy is vital, so take five minutes or so to think it through. Whimsically choosing a collar tag just because it’s low cost or pretty usually ends up being unwise, down the road.