Here's a life-saving (or at least nail-saving!) tip for anyone who has to regularly attach keys or key fobs to key rings.
When building demonstration kits for our Key Management Software, we couldn't believe there was no fast, simple method for attaching key rings to key fobs. The best we had come up with was using a small flat, screwdriver to lever the ring open and then insert the key or fob. Then we found this YouTube video, which shows that the humble staple remover has the answer!