Wow, where do you buy lunches that it saves you $10-$15 a day??
I used to buy my lunch every day, and started bringing my lunch to save money. I've found that I'm not really saving that much. Maybe $5/day, and I only need lunch for 4 days/week, and usually forget to make lunch once/week, so really it's 3 times a week I bring lunch. Meaning I save about $15/week, $60/month, which I guess must be going somewhere else that I'm not noticing.
Probably beers at Flames games.
Anyway, my lunches consist of good ole PB&J. It's tasty, and it keeps without refrigeration. I probably enjoy a good ham sandwich more, but the ham just isn't good after being kept at room temp for a few hours.