Remember that MCs are frequent targets for fraud, so use these GCs soon after purchase and save all receipts until you do.
I think the fraud issue is not bad now, have not had any problems for months and have not read about any recent issues, as for receipts , a definitely good advice.
Are these US Bank issued cards?
Can these be used for MOs at Walmart?
with difficulty.
Easy to cash out at giant eagle/GetGo
on money orders?