Part II was actually yesterday, but I didn't realize it.
In years past there was the usual problem with the lights. I could never understand why a set of perfectly working lights was put neatly away, but the following Christmas it was a tangled mass of sporadically working lights. Fortunately, I haven't had that problem lately, I guess the tangled lights fairy didn't follow me to my new home.
I now have another problem. Last year I had five round tables, each with a tablecloth, some plain, some Christmasy. This year when I took my decorations out I could only find one white tablecloth. I guess the tablecloth fairy took them. I went out and bought some new ones, so if the old ones suddenly appear I'll have a variety.
That seems to be my new philosophy. If it breaks or disappears (even temporarily) replace it.