Have you ever heard of spider walks? This is a great exercise for coordinating your fingers.
Just start at fret 5 on the thickest string and walk down, go index finger on fifth fret, middle finger on sixth, ring finger on seventh, and pinky on the eighth. Then do the same on the next string.
Once you get it move all over the fretboard using the 1 – 4. Also start using alternate picking (down on the 1 & up on the 2 and so on).
This is great for when you are just sitting on the couch. You need muscle memory to help make learning everything else on guitar easier.