Throwing paint cans in the garbage may result in the content leaking out if not handled properly.
However cutting the lawn will help in providing the soil with more organic matter while the gas powered mower may release gas which will pollute the air but not the land.
Composting and use of animal waste is also useful.
Well, this is to be because if you have a long term relationship, that right there says that you are happy with your partner. Furthermore, as you are in your late adulthood, you tend to get bored and not wanting to have anything to do with that. Hope you find this helpful!