I appreciate the enthusiasm for LAN parties and will talk to my gaming friends about getting one going.
Related possibilities:
1. Dust off some DVDs and a DVD player, pop some popcorn and watch a movie or two. Explore the extended editions, commentaries, alternate scenes, etc.
2. Dust off some CDs and a player and jam. My 2008 Honda has a CD player, I'm not restricted to streaming Spotify through a Bluetooth adapter :)
3. Dig up an N64 console, Goldeneye, the friends you played against back when, and order some pizza.
4. Go find a local bookstore, new or used, and buy a book.
I'm sure there are a dozen ideas I'm not thinking of, feel free to plug them in.