buying more supplies will not finish your current projects
What I have to tell myself when I think "ooh I could go to the craft store": " Do not listen to the siren call of new shiny objects! Spending money seems "easier" than working on stuff you already have, then you get home and realize you actually want your current project done. Exception of course when you need things to get a current project done, but you must resist the call of the New Thing! Your UnFinished Objects bin is judging youuuuuuuu."