Hello all, first time poster but I've lurked for a while. Long story short, I'm interested in tying flies and fishing again after a 15-year break. I started tying and fishing as a junior in high school with a class called "Applied Freshwater Ecology" (only in Alaska). Needless to say I still have all of my old tying materials and gear. I'm using the common sense approach to getting rid of obviously bad materials (rotting rabbit fur, feathers that disintegrate on touch). I've been wanting to get back into flyfishing because I remember how relaxing it was. Is there anything I should be wary about keeping (or that I definitely should keep despite how it looks)? I also have a lot of old tippet materials (I used to tie my own). Also I am hoping my lines are still good after all of this time. I've strung them around the living room and doused them with line dressing in hopes they aren't lost. Any advice would be welcome.