Anybody else feel like it's another Christmas Day?

We all know that Mickey Mouse became Public Domain today, but as you explore what other properties have become public domain, it's like opening another present and being plesently suprised what you find. For example, I knew books 4-5 of Hardy Boys were becoming Public Domain, but I just found out book 6 was released in 1928 as well. Already going good, but that 6th book is just an extra bonus that makes everything a little bit better. Also, I guess we have a Jazz Singer 2 that I never heard about.