I always do small workouts during the week.  For example, this week, I ran 2 miles on Monday morning, did Jillian Michaels on Tuesday morning, did a Denise Austin ab workout yesterday morning and last night I changed things up a bit.  Instead of my normal "medium" run, I did steps.

Our town is the home of the William McKinley National Monument.  There are 108 steps.  I only did 3 laps but it is a good workout!  This morning I was back to a 2 mile run on some sore legs!