Plug & socket
Plugs for disability. Spotted in a pharmacy for over £8 each
PS there's no such thing as a plug socket.
The ring circuits that supply domestic sockets are officially called "ring final circuits" but DIYers often use the terms ring circuits or ring mains and electricians often just use the term ring. (Lighting circuits aren't normally rings.)
The main difference between budget and quality brands is that while both begin life in spec, quality brands remain in spec over time.