Nothing ruins a good time out-of-doors like stupid bugs. Citronella candles help stave them off, but store-bought ones can be ugly. For a bug-fighting flame that does double duty as a centrepiece, make your own in a mason jar.
Nobody likes mosquitoes, but the mosquitoes sure do love us. Spraying your skin with DEET, picaridin, or oil of lemon eucalyptus keeps them at bay, but stores are full of wristbands, candles, clothing, and other products that claim to repel bugs without those nasty "chemicals." Some of them might help, but none are reliable.
Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.
One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.