They give us a sense of pride and accomplishment as we have updated and upgraded the usefulness and functionality of our home. We enjoy these projects and my wife gets on my case when I get them 95% done but leave some little task unfinished.
The projects for the kitchen cabinets and the flooring brightened up our family room and the kitchen. These changes are relaxing and enjoyable to look at. They bring a sense of satisfaction of a job well done as we did them ourselves.
The lazy susan project was very satisfying as we built it as a do it yourself project and it has proven to be very useful and helpful every day as it is so much easier to find and get the item or items we need.
The patio is very satisfying and useful projects. We use the barbecue grill almost every day during the summer time and I have even roasted two turkeys on it at the same time one year. We added an awning in the middle of the patio to give us more shade in the heat of the day.