There a slew of suggested upgrades to the ANET A8. Important upgrades improve safety while others help improve print quality and performance. This question is geared towards identifying individual experiences with the ANET A8 and possibly build on existing knowledge for further modification(s).
As a note, modifications already implemented include a 30A power supply with cooling fan, the addition of a mosfet for the bed heater and the use of Marlin 1.1.9 firmware (includes temperature safety protocols).