I use my Park chain cleaner a lot now. It beats having to remove the chain every time and it works pretty well.

I put a new GP4000 SII on my rear after my older tire split at the bead. This time I went with a 700x25 as that's what the shop had where I've been using 700x23 for years. It is a bit more comfortable in the ride and corners better. I'd put one on the front too, except that my front still has a lot of life left. I don't think any of my other bikes needs a tire either so I may just hold off. I also did 75 miles after using Squirt lube on the chain. It held up, but I think I'll reapply for my next ride on that bike. It'll be mostly commuter this week.