Can I change fuel filter, spark plugs and oil without jacking up the car?

[landrovered]

Kinda like the time I used a Hi-lift jack to change a tire on a Land Rover in the shop. Of course it fell off the Hi-lift, they are great for trail repairs but dangerous as hell on a cement floor. Then I tried to use a fork lift to lift the back of the Discovery off the brake disk and put one of the forks through the back window.

I should have gone in the house before the whole incident began.