I am thinking of an Idea, I don't know if it is feasible, but here is the Idea, mess coupons will be like recharge coupons (Prepaid), there will be a counter inside mess or near warden office. We have to pay there and take coupons for meals (breakfast, lunch, snacks & dinner). We can take as many coupons as we want (but total coupons should not exceed the no. of mess working days) and then we can use those coupons to take meals for which we have the coupon. Later, for the next semester, fee for meals for which we didn't take coupon will be added and we would have to pay less amount towards mess fee. This system will be feasible if we don't take coupons in bulk. We can take coupons on per week or per month basis and we have to tell that I will be eating on these particular days, food will not be wasted as caterers will be knowing in advance about how much food to prepare.