Below are the strategies I use as a single person, not young anymore, and less capable of physical effort. Many of them also save money.
I have planted 25 fruit trees or shrubs and after 3 years have already harvested from some of them. An existing large apple tree, some cranberry bushes, and a wonderful Tamarillo also provide fruit. Other fruit is bought in season when it’s cheaper and made into jam, chutney, etc. or frozen. I compost, have a worm farm, and recycle wood ash. For heating, I burn wood with some firewood purchased initially, but since then, wood from tree removal and pruning. I grow vegetables and am extending the growing area bit by bit by converting lawn. The resulting garden is no-till, created without digging or weeding, just many layers of organic matter on top of the grass.
Beyond the above, food comes from the Farmer’s Market, vegetable market, family members, and the supermarket. From the latter, I buy staples to make my own bread, cheese, yoghurt, muesli, cakes, cookies, and curries etc.
I do not buy pre-prepared food or food in excess packaging. I avoid plastic bottles where possible, and use my own fabric bags for produce. I seldom eat out or buy take-aways. I aim, but don’t always succeed, in eating 30 different fruit and vegetable types per month for a range of nutrients which includes spices and herbs. I grow all the main herbs in pots by the back door for quick access.
My transport is an old diesel car with 300,000 km on the clock. I service it regularly and aim to keep it until it no longer functions (or I don’t – whichever comes first). I drive it only to places I can’t reach other-wise, and take public transport when possible. I have not taken any flight in the last 4 years, but hope to visit relatives next year. Sightseeing is limited to whatever is around where they live.
I try to keep energy usage to a minimum (e.g. fuel above). It used to be cheaper to run a diesel than a petrol vehicle – hence my choice.