I actually did this the guy said it wouldnt work but it did....what it comes down to is that you are dealing with two seperate departments u go to appliance guy and he gives you a printout with the price match...when u take it to cashier you just give him your 10% off code and it will ring up- the appliance guy wont put that into the price he gives you (he'll say double discount not allowed) but the system doesnt view it that way so it should work and I think its ethichal especially if you don't even mention coupon to appliance guy