I live on an incline.

With my manual 16 valve, I first apply the e-brake, then push the clutch in and allow the car to roll back until the e-brake stops it. Then I put it in first gear (if the car's pointed uphill). That way the weight of the car rests on the e-brake, not the transmission.

With my E-320, I first shift into neutral, let the car roll until it rests on the brake, then shift into Park. Same principle as above, letting the weight of the car rest on the brake rather than the transmission.

On both cars, I always turn the front wheels so that the car will roll into the curb rather than out into the street if, for some reason, the e-brake stops working and the car isn't in gear.