Always buy "certified seed". This is identified by a blue tag saying certified. By spending a few extra cents up front, you will save many hundreds of dollars along with the added aggravation of controlling unwanted weeds later. Choose the right grass seed, sod or sprigs for your situation.
Always wait for a circular blade to completely stop before pulling from a cut. Otherwise it may bend or kickback.
When you replace a toilet, install a low-consumption model or a water saver. Standard toilets use 5 to 7 gallons per flush; "water-savers" use 3 to 4 gallons per flush; and new low-consumption models use 1.6 gallons, or less per flush. Until you replace your toilet, put a plastic bottle filled with water in the tank to cut down on water needed for a flush.
A good deal of shop work can involve planning and designing jobs. If you have not done so, outfit your workshop with plenty of paper, drawing tools, tape and planning aids, plus a desk lamp and a comfortable stool. Such creature comforts will help increase your enjoyment of home and workshop projects.