We've had two days of unseasonably warm weather--around 50 degrees. More importantly, Spike has been in much better shape; he's not wheezing as much and seems stronger.
Jeff and I took Spike to the dog park the last two days. It had been a few weeks since his last visit. He clearly enjoyed his time there: sniffing out new scents, greeting other dogs and humans, even running around a bit.
We have to take things day by day, and enjoy all of Spike's good days.