Not so simple exercise continues - Need

My not so simple exercise has wandered down many paths these past few days.  These wanderings have brought my support structure into a purer definition for me.  But from that definition, I now have another component to look into - "Need".

So what do we "Need"?  This is truly a dilemma for me.  I learned a long time ago to be self-sufficient in nearly everything.  Need to change a tire?  Yep this woman does not need AAA.  Need to change out a light fixture or sink, faucet, build a garden or anything else?  Yeah...no problem.

There is a fine line here. What really defines "Need"?