What stupidly easy tech solution do people gloss over all of the time?

For me it's the paranoia surrounding webcams. People outright refuse to own one and I understand, until they go on and on about how they're being spied. Here's the secret - unplug the damn thing when you think you won't use it or haven't used it in a while.

They, whoever it is, can't really spy on you on something that's already off and unplugged!