Making Math Relevant

This is a broad and general question, so expect the response to be generalizations.  Real life math applications come from everyday activities. For instance, we have a checking account so we must +/- and also calculate compound interest.  We have schedules so we measure time in intervals.  We walk so we can measure distance.  Each step can be about a yard (if your tall).  So, look for applications of your lesson plan in everyday activities.