From the The Universal Household Assistant or What Every One Should Know (1884):

Cockroaches — ways to destroy. — 1. The disagreeable odor which the cockroach emits, and which soon permeates all places that it inhabits, proceeds from a dark colored fluid which it discharges from the mouth. The cockroach loves warmth and moisture, hence its populousness in kitchens where fire and water are almost ever present. It is a night prowler, and swarms out from its secret lairs on the departure of daylight.    For the destruction of the cockroach we recommend a mixture containing a tablespoonful of red lead, the same amount of indian meal, with molasses enough to make a thick batter. Set this on a plate at night in places frequented by the insects and all that eat of it will be poisoned. Another preparation is composed of one teaspoonful of powdered arsenic, with a tablespoonful of mashed potato. Crumble this every night at bed-time where the insects will find it, and it is said to be an effectual poison. Great care should be exercised in the use of such dangerous agents. An innocent method of destroying cockroaches is to place a bowl or basin containing a little molasses on the floor at night. A bit of wood, resting one end on the floor and the other on the edge of the vessel, serves as a bridge to conduct the insects to the sweet deposit. Once in the trap its slippery sides prevent retreat, and thus cockroaches may be caught by the thousands.    2. The following i said to be effectual: these vermin are easily destroyed, simply by cutting up green cucumbers at night, and placing them about where roaches commit depredations. What is cut from the cucumbers in preparing them for the table answers the purpose as well, and three applications will destroy all the roaches in the house. Remove the peelings in the morning and renew them at night.    3. Common red wafers, to be found at any stationers, will answer the purpose. The cockroaches eat them and die. Also, sprinkle powdered borax plentifully around where "they most do congregate," and renew it occasionally; in a short time not a roach will be seen. This is a safe and most effectual exterminator.    4. Borax is a very good cockroach exterminator. Take some pieces of board, spread them over with molasses, only sufficient to make the borax when sprinkled upon it stick, and place the boards in their haunts. Gum camphor is a speedy remedy to clear the house of cockroaches.

I almost stuck to my plan today. Had mashed potatoes for breakfast, stroganoff for lunch, an egg and cheese bagel for dinner, and wasabi peas for my healthy snack. However, I just at a bowl of Häagen-Dazs Vanilla Caramel Brownie Ice Cream, which does not count as healthy and even if it did would be outside my three meal plan. Tomorrow I will improve and hopefully actually stick to the plan.