This semester I posted mobile phone friendly solutions to exams in my Elementary Algebra and Intermediate Algebra courses.  Both are one-semester courses. This was easy to do using a basic snipping tool and Blogger.

[ Elementary Algebra Exam #1 Solutions ]

[ Elementary Algebra Exam #2 Solutions ]

[ Elementary Algebra Exam #3 Solutions ]

[ Elementary Algebra Exam #4 Solutions ]

--- EA Sample Final Exam Ch. 1-7 ---

[ Intermediate Algebra Exam #1 Solutions ]

[ Intermediate Algebra Exam #2 Solutions ]

[ Intermediate Algebra Exam #3 Solutions ]

[ Intermediate Algebra Exam #4 Solutions ]

--- IA Sample Final Exam Ch. 1- 7 ---

In doing this, I was able to save some valuable class time. We are not quite finished, I still need to cover conic sections (chapter 8) in Intermediate Algebra, but students definitely said they appreciated this approach. Please feel free to comment or share.