My best tip would be to join the Family Corner
Couponaholics! We share coupons through an exchange where we all mail coupons (and 2 stamps) to one member, and she sorts out the coupons according to everyone's wish list and then mails them out.
I like to combine coupons with store discounts to get the best deal possible.
It helps to use a menu plan AND keep your pantry/storage area semi-organized. Then when you make your shopping list, you can see at a glance what you need.
I don't think that using coupons takes that much extra time, and the payoff in savings is definitely worth it. I usually save about 25% of my grocery bill with coupons and store sales.