Most moms I know handle household finances (or at least do the grocery shopping!), so I want to make sure we're all equipped with the tools necessary to do this job well. When I first started couponing, I had NO CLUE where I was supposed to find printable grocery store coupons. All I knew was that some coupons came in the Sunday paper. For all the new couponers out there, I don't want to take it for granted that you all know where to get free coupons you can print out. It took me MONTHS of…