Target.com has some coupons available for school supplies.
$1.50 off Mead cloth binder
$1 off Sharpie permanent marker
$1 off two Bic writing utensil items
$1 off Papermate writing utensil
$.50 off Scotch magic tape
I did see one for Post-it flags or tabs
You can print these twice.
There are some manufacture coupons out there to stack with these;
Scotch Magic tape lots of different coupons there is one for $1 off Magic tape
Post-it there are a few different coupons available, there is one for a $1 off flags and tabs purchase of $2 or more.
Papermate coupon is good for a $1 off any pack of PM 300RT or Silhouette Elite.