Frequently bagging your clippings can lead to problems. Understand that all plants carry nutritional value throughout their roots, stems, and leaves. Therefore, it is important to know when mowing, the clippings provide nutritional value that can be reused by the plant once it decomposes. If there are excess clippings, there could be a need for them to be removed. There would need to be a thatch problem or you feel like the excess clippings will smother your lawn.