It has still been too wet to plant in NW Ohio. Some people who have a sandy field might try to get started later this week. We crossed the northern part of the state again last week on Route 224. There are quite a few tractors sitting in barn yards ready to go, but no planters were sitting out. On my large tractors I change all the filters each year. I used to change all the hydraulic and transmission oil also, but I was told that it was wasteful and that instead I should just pour the used oil back in the tractor and then stop when I see dirt or metal filings in the bottom of the 5 gallon buckets I use to drain the oil. I let the oil sit in the buckets for a day and the impurities settle out in the bottom 2 in. of the bucket. This is very economical; it probably saves about $1,000 of oil a year and makes for less oil to have to dispose of. I only drain my engine oil once a year. I use top quality para synthetic oil so I don't have to worry about how many hours the tractors run because the oil can run several hundred hours without breaking down.
In my travels I stopped at Tiffin, Ohio and looked at a straw bale house that was built last year. I had read about it in a newspaper and wanted to see it. The walls are rated at R-80 and the home is almost energy independent because it also has its own windmill to generate electricity. I was extremely impressed with the tour that I took.