Sunday Coupon Preview has a glimpse of what we’re likely to see in tomorrow’s paper. According to them, we should see 3 inserts (1 in the Seattle Times because there will be 2 RedPlum inserts).
Some coupons are regional, so you might not see every coupon listed, but this is a great resource to determine if you want to buy multiple copies of the paper. Why buy multiple copies? To build your coupon stash!