As for my rotary blades, I've used my bladed sharpener I bought years ago and have been very happy with it. I keep the containers the blades come in and have labeled one "Needs Sharpened", "Sharpened" and so on. I also read if you flip your blad around, you can get a little more use from it. When I've sharpened my blade once, I mark it so I know it's been sharpened at least once. I use it until it gets dull for me, then sharpen it again but it goes into a container labeled for "Paper Only" as I have a rotary cutter just for paper and stuff so I don't use my good blades accidently.
I use Elmer's glue for a lot of things in my quilting/sewing. When I go to attach my binding to my quilt, I heat set the glue clear around the quilt only stopping to stitch the 2 ends together and then finish glue/heat setting the last of it before taking it to the machine to stitch down. This saves me from getting pricked by the straight pins and I know I have enough binding to go around. I just finished a Drunkard's Path quilt, 2 of them and I used Elmer's Glue on the ends so I didn't need any straight pins, then I snipped along the curve edges and it made it easier to ease the 2 fabrics while I stitched them down using no pins whatsoever. This week I'm working on an old UFO, a Cathedral Windows, queen size and I'm glueing down the flaps and heat setting them before I take it to the machine to stitch down. Again, no straight pins to price me.
I try to use up all the scraps from a quilt project either by using them for the binding, or if I need to make the quilt a bit longer and/or wider, I'll use the scraps to add an extra pieced sashing as we all know scraps seem to breed when we're not looking.
My batting scraps if a decent size I'll use my batting tape to put them together and keep a note on them with what size they are until they become a size I can use for another quilt top. For small scraps, I find they're great to use with alcohol to clean off my quilt frame rails and machine wheels..
I also have been looking at the thrift shop for large draperies lined or unlined to use in making clothes, jackets or whatever. My aunt was a CEO down in Houston years ago and she had her suits all made from drapery fabrics and they were stunning and very sharp looking. So I have a good collection of drapery type fabrics or drapers themself large enough to make a skirt/jacket or a jumper/jacket or just a jacket. I can't see paying the prices clothes have gotten today and the style goes out by next year. Most of my clothes come from our local thrift shop that is also non-profit so once I'm tired of the clothes, I give them back to resell to someone else. I only buy certain brands though so I'm still picky.