My company makes me pay everything on my credit card too (except airfare). Which is good for me because I earn miles, but bad for me because I also get reimbursed after interest is charged to my account (because of a long process of getting 3 signatures to approve it).

That said, my company is pretty good when it comes to expense report guidelines. We have $25 breakfast/$25 lunch/$50 dinner limits but for NY it can go up to $75 for dinner. Receipts need to be provided for anything over $25 but they prefer to see every single receipt. With hotels, I'm lucky because I'm forced to stay at the hotel where my meetings are taking place- usually Ritz Carlton, Hyatts, Westins, etc. We were provided a hotel pricing guideline but I've strayed from it many a times. Airfare- they prefer that we book one of the 2 least costly fares. However, with a manager's approval, we can book any flight (just not first class). They never fly us business or first (even international) but they said we can use our own miles to upgrade (nice of them, huh?).

Regarding the strict no-lunch policies, I've never heard of this until reading this thread. I guess I've been lucky. I can expense lunch at my home airport (when my office is only 5 miles away) but I only do this when the flight is 1 or 2pm. I also can expense lunch when I'm at other offices and I usually take a co-worker or two with me