Being hungry when grocery shopping will make you have cravings and buy stuff that you don’t need - which will create waste. Plan your meals, make a shopping list and stick to it.
Reflect on delivery.
Often times it's more sustainable to go into the store or restaurant or pick up the item or food yourself. You will avoid unnecessary packaging and potentially transportation emission from delivery. This depends obviously on distance and type of transportation you would use, since otherwise delivery can be actually more efficient, especially when the providers is running on electric mobility and multiple deliveries are carried.
Choose cloth napkins.
Instead of buying paper towels or Kleenex use cloth napkins and handkerchiefs since they are reusable and have a multipurpose: tissue, hand towel, napkin or snack saver.
One effective way is to eat less animal related food like meat, milk, cheese or eggs - especially red meat (cows/labs). Meat lovers have a yearly footprint nearly double compared to vegetarians. 🍆
Organic farming for crops and vegetables has a lower environmental impact compared to conventional methods. Since fertile soils that are full of nutrients, organic food is usually also better for your health.
Eating food which is in season causes less emissions as the food has has not to be produced in heated greenhouses or has to be transported from far way - as distance matters a lot. Especiall avoiding hothouses and air freight can reduce dient impact by 10%.