Info exchange - tips

We have had our 15' for about 5 years and can honestly say that it has paid for itself many times over in money saved on baskets, starts and veggies and the pure pleasure we get all year round. Our only complaints are that they do not make a larger one and that we do not have enough room for a second one. I thought it would be fun if other gardeners would share some secrets. I recently was doing some Rose cuttings in the greenhouse and brought in aphids, which quickly spread to my pepper plants in the greenhouse. Normally, I would have cleaned the plants with soap and water (you must do it three days in a row). This time I tried something new I had read. I put banana peels on the plants and a piece on the soil for both the roses and peppers. Unbelievably, after two days there were no more aphids - IT WORKED.