I just checked it and it worked fine for me.
http://personalpages.tds.net/~rb/DIS/MYM-Dining-Planner.xls
You do need Microsoft Excel installed in order to access that link, though.
I don't think I'll use anything other than the receipts, honestly. If I do use something though, it'll probably be on my PDA. No sense in carrying excess paper around. (Now I just have to find where I hid my PDA -- haven't used it in forever.)