This topic very recently became near and dear to my heart (actually my wallet)----
When I had a family and cooked regularly I would always bring leftovers, etc. to work, but now that I live alone I decided to make my main meal at noon and buy it from the cafeteria where I work. During the summer I almost always make a chef salad type salad from the salad bar, and a piece of fruit. Sometimes I will have the special of the day (we are talking hospital food so sometimes the "special" isn't very special, lol). I also would stop and get a muffin each AM and if for whatever reason I had to work late I would get dinner at the cafeteria also. It is important to note that we do not get an employee discount, but that is another story!!
About 2 months ago the cafeteria starting offering the benefit of payroll deduction---they would just swipe your name tag, you signed the receipt and off you went. I didn't use this until about a month ago and decided that would be quick and easy, not have to stop at the ATM, etc.
So I went about my daily routine at the cafeteria and only had 2 days in the 2 week time frame that I had to work 12 hour shifts so 8 of the days were for the muffin in the AM and lunch. I just about had a stroke when I got my pay stub and saw the payroll deduction for the cafeteria was $82.47 for 2 weeks. That was a real eyeopener and I have brown bagged it ever since!!! I went to the grocery store and purchased only what I would need for my morning muffin and lunch for one week and spent $24.79. That included fresh fruit, yougurt, deli oven roasted turkey, bread and tomatoes and cucumbers. The muffins alone was a tremendous savings. I was spending $1.79 every morning and got a box of 4 from the bakery for $3.69!
So, I am now a brown-bagger!!