I have the 3 foot plastic gutter guards that you can buy at menard's on sale for about 99 cents a section. they slide under the edge of the shingle and lock over the edge of the gutter. I have had them on for about 10 years. they have been great. I have oak trees on 2 sides of my house and used to have to clean my gutters almost continuously in the fall. if some debris or pine needles from my neighbors pine tree get in, you can slide the end piece out and clean where the downspout leave the gutter or you can take each individual section. I bought them and put them on myself in about an hour, the only tools where a good pair of heavy scissors to trim the end piece flush with the gutter.