Times are tough

So in an effort to be more frugal and save more money I am investigating every option I come across for lowering living expenses as much as possible.  I have seriously taken up couponing again.  For awhile I slacked because with the baby (now 2) it was hard to get it all done.  Couponing is a LOT of work, but it is fun to see that total drop down in the end.  I have also been paying more attention about making trips to the store, so as to plan everything in a route to save more gas.  Today I am going to auto insurance compare, and see if I can find a lower rate on that.  What are some of your money saving tips to lower living expenses?