Spot Quiz
cutting back on the number of assignments
designing shorter assignments
resorting to multiple-choice- or true/false-type tests or quizzes
assigning group projects (not so much for pedagogical reasons)
making the final exam optional
replacing written final papers with oral presentations
being lenient to avoid the whining (but unwittingly contributing to grade inflation)
relying on peer-assessments, not so much for pedagogical reasons, but