How to jack up on a slope?

Been working outside on cars for the last 30 years, even at my workshop we usually work outside when ever possable (better light/less fumes ect ect) it just meens you either wait or get wet when it rains, waterproofs really make you sweat and TBH you get wetter and smellyer wearing them than if you wore normal clothes in the rian mind you i'm a fat fook so sweat a lot anyway

I have a gravel driveway,great for raking over oil spills,pain in the rear for laying onand using jacks on,but i've taken off axles,gearboxes,engines etc etc so yes a driveway is fine.

Only thing to watch out for is the water run off when it rains,ie does it run to one side or end,does it pool anywhere.Obviously you don't want to have to lie in the bit that 'floods' ....

It's hard to show you without taking a picture, but here is the google earth picture of my Grandma's drive.





Here is my Dad's drive as you can is even more sloped.




Is there any way to jack up the car on a not-flat surface? And if I had to move the car onto the road, how annoying would it be to have to keep driving on and off, bearing in mind some big jobs make take longer than a day.

Not to sound stupid (sorry!) but how would it be done safely, other than chocks? I take it Axle stands would work fine, too? 

Does my drive look too steep? Someone briefly mentioned to me an idea about using ramps to level the car, but that wouldn't work would it because the jack and car wouldn't be parallel? 

I wish I knew if you were right or not because those pictures look deceptive. I suppose the only way would be to measure the incline ...

I have a sloped drive and often work on it. Usually it's no problem so long as you use a bit of common sense. But make sure the car is running up and down the slope not across it if you're doing any jacking. They have a habit of moving sideways when jacked across a slope.

I prefer to raise the car from the lower end of the slope - just been working on an exhaust that way. As said, use chocks every time.

Re axle stands, so long as the slop isn't too steep they work fine, but if you need to raise the whole car then don't use axle stands alone. I usually put two wheels on steel ramps and then jack the other end and put it on axle stands. That way two wheels are solid on ramps and it's not going to fall off the stands. (I still have a secondary pair of stands though - I saw a car fall on a guy once and it's not a nice sight.)

I've called the housing association where I live, so perhaps they might allow me to carry out car repairs? Let's not rely on that. So from what I hear: chocked wheels at the higher point of the slope, and axel + jack + wheel (standard safety stuff) and pray to the heavens that nothing goes wrong?

This is all I can think of to keep the car / me safe.

Slope on that diagram is an exaggeration but it demonstrates the point.

There is still the flat road ....