I don’t often post links to articles I find on the web.  However I spotted this one on digital camera world.  There are some interesting ideas here:

http://www.digitalcameraworld.com/2014/04/19/7-daily-exercises-that-will-make-you-a-better-photographer/

The key thing in the article is that if we are to improve as photographers we need to be constantly pushing ourselves just a little outside of our comfort zone.  Why not commit today to pick up a new photography skill or to tryout a new technique.