Silicone Glue Brush 45624, by Rockler
Raise your hand if you clean glue brushes. We thought so. Most get tossed after one use. This 7-inch-long spreader won't gunk up after the glue dries, because the brush's bristles are made of slick silicone. In fact, cleaning is easier if you let the glue cure, then peel it off.
About $5; rockler.com