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What is/are the latest invention you appreciated the most in these few years?

This invention I have in is affordable for everyone, and if it is created long time ago, it would be excellent. Hint: every household should have it and may have no choice to have it in a couple of years.. Can you guess it? (not computers, not internet, not microwave, not TV, not cell phones) Not Gps either. this thing is invented in these few years. and good for the environment... !!

Public Comments

1. Mine personally is the microwave oven. It takes just a few mins to cook vegetables straight from the garden, and the kids can reheat a mug of home made soup in 3 mins.
2. Are you perhaps referring to LEDs? Although I wouldn't exactly call those affordable to everyone. I just replaced all my $0.40 incandescents with $1.75 CFLs and that was a dent. I could just imagine if I replaced them with $10 LEDs
3. The mute button so I can silence liberal politicians and Hollywood celebrities with a flick of my finger.