A.G.
Loaf of bread - $2
Can of tuna fish - $1-3
Lunch meat - $4
Lunch cheese - $4
Mayo - $4 squeeze bottle, 1-2 squirts/sandwhich, 2-3 wks worth of sandwhiches - $1.25/wk of mayo
With this list I can probably make a weeks worth of sandwhiches for $13.50, if that's all he brings, which comes to $2.50/day. Not bad considering he can easily spend $5-10+ each time he eats out for lunch.