Using a Scissor or Bottle Jack (eg to change a wheel)
Front: Under the lower wishbone, about half way acrosss. This has the effect of just compressing the spring and damper and gives enough clearance to get the wheel off. Loosen the wheel nuts before using the jack, and re-tighten once the tyre is on the ground.
Rear: Under the trailing arm/A frame bush at the front of the wheelarch.