My house. 1926 vintage bought in December '01 and did almost everything. Pulled down loaded up acoustic ceiling to find the damaged plaster it was covering. Pulled that down and put up sheet rock. Crown molding/repainted everything, stripped and primed/painted all the 75 year old door hinges, latches, and heating grates throughout the house. Remodeled the kitchen including tearing out a wall to the dining room and put in a bar, crown molding everywhere. Installed tile throughout the kitchen. Moved washer/dryer to the basement after installing an up-pump system to get the water out of there. A new backyard including all hardscaping, spa, patio, lots of tropical plants.
But now? I have molding across the newly ( 2-1/2 years ago...eek!) sliding door that I have never put in. Trim out arounf the tile in the kitchen at the back door. And biggest of all, finish tearing apart the bathroom I already started two months ago and re-plumb/finish it. All of a sudden (2 years ago) I ran out of gas. I just can't seem to sustain my efforts like I used to. I have all the tools, all the ability and knowledge and I just can't motivate myself. Now I realize all the rooms probably need re-painting again. It has been 6 years in some rooms. Will it never end? This thread has me thinking again though. Some pix of the work:
Backyard After (It was a weedy, unshaded hole before):

The driveway with my old 951 and my Honda 70 - Found beside a trash dumpster. Taken apart it is its own unfinished project. But at least you can kinda see the patio
The sliding wood doors I installed. Since stained and stucco painted but molding along bottom inside unfinished for WAY too damn long: