[are12]

When you take the per diem, you cannot deduct the food you buy or from fast food restaurants. (no need to save receipts, since you can't claim it). As for the papertowels, tt paper, laundry supplies, if they are purchased out of my personal checking, I just circle the items and put the amount spent on the top of the receipt. I usually try and separate anything for the truck and use my business account to purchase those items
As for you both getting the per diem, the answer is yes.
Hope this helps.