HSN Code: $20 off min $40 single item purchase (New customers only, not valid on TS)
The code is: 988048
Your HSN account must be a new one with no prior purchase.
I know that it works on sale items, and not the TS. I'm not sure about clearance items though. maybe someone can try it on clearance items and report back. The item you buy must be above $40. The code only takes $20 off a single item once.