As a follow-up to the post about my coupon box, here's how I handle coupons each week... at least in theory! :-)
1. Clip all coupons from the Sunday newspaper inserts.
2. Decide which ones to keep. The ones I'm not keeping, I put in a pile to mail to military families.
3. Sort by category. I also arrange mine by expiration date, so that the coupons expiring first are always in the front. It makes it simpler when I'm discarding expireds or attempting to use up coupons.