If you want to order expired coupons and are wondering how much the h/f is, here is the chart I go by:

 

Current vs. Expired

.05 --> .03

.07 --> .05

.10 --> .07

.15 --> .10

.20 --> .15

.25 --> .20

 

And so forth.  Example:  If a coupon that is not expired is .10, then once it is expired it will be .07.  This chart applies to coupons soon-to-expire as well (like a week or so, not a month lol).  This may not necessarily apply to hot coupons or free's.  LMK if there's a coupon in question and I will lyk what the h/f is. :)