Yes, that day that you've spent all week thinking "On Saturday I'll…" about.
So, what's on your list? Do it!
If you've packed too much in, pare it down to what you'll most enjoy and be most relieved by being done with.
Me, I'm visiting Grandma Susie, dumping a bunch of old crap at the Goodwill, doing a bit of shopping for obscure cocktail ingredients (who would have thought that orange bitters would be so elusive?) & fresh fruit & veg, and watching DVDs & reading.