If you are wild camping these are the steps I follow:
1) Set up your tent as close to dark as possible and take it down as close to sunrise as possible, so it doesn’t disturb anyone else’s enjoyment of the view.
2) Think twice about campfires as there is no way of not leaving a burnt patch. I tend to use a gas camping stove. Try to steer clear of using disposable BBQs as it just creates extra waste; if you are staying in a campsite then they will have designated areas or firepits to borrow. Finally, if you're draining food like pasta, make sure you don’t leave any behind.
3) Always take a sealable rubbish bag with you so you can cleanly carry out all your litter. This includes natural waste such as fruit peels and skins - orange peel can take up to six months to decompose, and banana skins can take 2 years. They're also not natural to the UK countryside!
4) Make sure you go to the toilet in a way that its not going to bother others. Make sure you are at least 100m from any water source, dig a hole about 6 inches deep and then replace the soil. Either carry out your loo roll or burn it.
5) Make sure you use biodegradable soaps and non-toxic sunscreens and insect repellents - we don't want to pollute the water.
6) Don’t pick flowers, break branches or destroy anything where you are camping – just observe and enjoy the tranquillity.
7) Don’t leave food out or feed wild animals.