Android: Swipe down from the top of your screen -- to access the Quick Settings panel -- and then tap the Airplane mode icon.

Wi-Fi extender or booster: which one should you get? They're sound similar but not quite the same. Know which one to choose as per your needs.

If you have spotty Wi-Fi connections in certain areas, get this TP-Link AC1200 for 33% off and boost those signals!