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

Question

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)

Answer 1

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

Answer 2

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.

Answer 3

The mute button so I can silence liberal politicians and Hollywood celebrities with a flick of my finger.