Picking a pet ID tag for your Old English Terrier is like buying an insurance policy – you do it with the faith that you won’t need it. The “possible cost” of not having a pet ID tag is more expensive than the “actual price” of buying the pet tag itself.
The type of pet ID tag that you buy is vital, so take 5 minutes or so to consider it. Impulsively purchasing a collar tag because it’s cheap or pretty often ends up being foolish, long-term.