There will be 3 coupon inserts (Red Plum, Smart Source and P&G) this weekend and if you go to the 9/27 coupon preview you can get a sneak peak of what will be in all 3 inserts.
Remember each region is different so the values may be slightly different but this will give you an idea of what will be there.
If you want more coupons you can print coupons here and you can read about different places to find coupons here.