I have three loose leaf binders that are full of patterns torn from magazines and tucked into plastic page protectors along with lessons and quilt motifs. All are categorized by general themes like table runners, baby, wall hanging, seasonal. Even though a pattern may be in one category doesn't mean it can't cross over into becoming something completely different.
I keep patterns mostly for inspiration and have rarely made a quilt exactly to a pattern. They are just starting points.
peace