• Determine if your college or university offers scholarships for senior learners.  Murray State University, where I am enrolled in grad school,  offers the "Donovan Scholarship" which provides for tuition-free attendance for students over the age of 65.  Sometimes it "pays" be old!
  • The Donovan Scharlarship does not cover the cost of text books.   As many are expensive, you may want to consider purchasing them online.   Amazon Prime Books is an excellent source.  Look for the "used" books option in order to save.  
  • Grad school requires lots of writing.  Spell checkers have limited usefulness. There is a much better software tool called "Gramerly", a Microsoft Word extension.  Click https://app.grammarly.com/ to learn more.   
  • Another great software tool for writing is "Perrla", a Microsoft Word add-in to manage citations.   Ckick http://www.perrla.com/ to learn more.
  • Google search didn't yet exist for most senior learners when they were undergrads.  Fortunately it does now.  Use it often and wisely (lagetimate sources only) for your research/writing tasks.   For an added bonus, check out "Google Scholar" at https://scholar.google.com/.
  •  Many grad school students take lecture notes on a laptop.  Might be ok for younger learners but can easily become a distraction for the rest of us.  Notebook notes  augmented by copies of the professors lecture notes/slides (when available) work best.
  • Good news!  Many grad school lectures are conducted in a seminar fashion.   Your professor and fellow students will welcome your perspective.  Indeed, this is a big plus especially for senior learners. 
  • Make it a point to complete class assignments well ahead of the due date.
  • Thankfully, most exams are "take home".  Nearly all are  in an essay format.
  • You will be conducting lots of research.  Learn to use online resources including  "library guides" for your college or university. 
  • Polish your research paper writing skills.  More to follow.