I spent $15 on my Wi-Fi setup and it outperformed a $200 router upgrade

Upgrading router antennas to high-gain or directional models ($15) can outperform a $200 router upgrade by reshaping and concentrating the Wi-Fi signal rather than just boosting raw power. Standard 3dBi antennas spread signal in all directions inefficiently, while 9dBi or 12dBi antennas extend horizontal range significantly. Key tips include checking for RP-SMA connectors, verifying antennas are removable (not possible on Google Nest or Eero), keeping antennas vertical for single-floor coverage, and tilting one 45° for multi-story homes. No configuration is needed — just screw them on.