The chart is helpful, I usually keep track of everything in my head but between overlapping timelines and dozens of vignettes writing everything down is very, very helpful. (And color-coding is always fun!)

Poor kittens with the thunder! I hope they are getting used to it. Thomas sometimes has to go and hide under the bed. (He does the same with fireworks, too.)

That chart sounds like a great help. I always think it must be hard keeping track of a straightforward linear narrative, never mind all those vignettes!