Just finished a massive project I started two weeks ago, and holy fuck I'm worn out. But hey, the entire hot water line from the water heater to 5 separate faucets has been completely replaced! I had the PEX lines set up and waiting for the changeover two weeks ago, tested the lines for leaks last week, and today I finally cut out the galvanized steel line to the kitchen and made the connections needed to the faucets. And it was a success! No leaks!
I also replaced the kitchen sink because that was a nasty corroded piece of work that had issues. But now it's shiny and new and the hot water comes out clear and a steady stream instead of a low trickle due to a corroded half shut cutoff (which all are now ball valve style cutoffs, with ball valve shut-offs to the kitchen and bathroom in the event I have to work on the line between the valve and the faucet cutoff)