I try to mostly cook on the firepit in summer (we have a schwenker) but mostly for keeping the house from getting hot. This past summer we didn't run the air conditioning at all to cut the electric use. I kept the kiddie pool on the deck for the kids and it was a tremendous help to have freezing...
Consider a french press. I got one after my 2nd coffee maker in 3 years broke and I was fed up. Has a built in mesh filter and makes even cheap crap coffee taste great. Cheaper than a coffee maker too. The mesh top filter can even be used to froth milk if you like fancy coffee sometimes...
My biggest thing probably is using flour sack towels instead of paper towels. All purpose and I use some of them for cloth diaper inserts too. I do not cloth diaper most of the time because of the excessive laundry and because Aldi still has very cheap and good quality diapers, but I had to for...