I'm collecting (mostly short) expository articles and sets of notes that really hit the spot:
Primer of Classical Invariant Theory, Kraft and Processi
Witt Vectors, Joe Rabinoff
Rational Points on Varieties, Bjorn Poonen
Verdier Duality, Akhil Mathew
Rigid Geometry, Mihran Papikian
Introduction to Model Theory, David Marker
Clay Summer School on Galois Representations