When going to the grocery store, take your own fabric shopping bags and smaller net bags for fruits and vegetables (or buy some from our alumni's business SISU kott:
https://sisukott.voog.com/). Also keep in mind that you can use one bag for different fruits by weighing them separately and placing the price tag on the bag. When going to the café, drink coffee from the mug on the spot or take your own cup and metal/glass/bamboo/paper straw instead of a plastic straw.