@catrainer, thanks for the wiki link! I wanted to point out a couple of things (I wasn't sure if I'd be able to edit so I didn't bother).
1. Under the returns-(gift)receipt and debit/credit card sections, you have K1[no], K3[yes]. Same thing under the defective section - you have K3 as yes the item is defective. I believe K1 is yes and K3 is no.
2. Under the returns-debit/credit card section, step 3 should be ask the guest to swipe his or her card before scanning the return item.
3. Under the returns-no receipt section, you don't necessarily have to press K1 before scanning the ID. I've never pressed any K button, just scan the ID.
4. ASANTS, but we only have red and white labels at my store. Red is for as-is, online only, repackage and clearance items; white is for everything else.
5. For closing GSTMs, we have to close CRC and e-Recycling bins (GSTL/GSA will come and check off the items). We also box all salvage items and place them in a cart to be taken to the back. We empty out trash cans and place in a different cart to be taken to the back and we bag all toss items and send that to the back with the trash.