Why use anything else to organise the keys (and tools), that come and go from your keyring?, clip things on faster than you can blink.
These are strong 6mm steel; secure, long lasting and self polishing in your pocket!
hugely superior to the aluminium/coloured variety that are not secure at all.
Buy an extra one or more, (one included with Plumchum tool), for your partners keys, or to give your own more 'swing'!