I've bookmarked this thread and will use a lot of the ideas! These are great!

I use the larger binder clips to sort and store leftover fabric strips

Un-bent paperclips (the large, plastic-coated ones) as hooks for my rulers and other tools that can hung. I hang these from cup hooks inserted into the wall.

I'm using furniture from my mom's house as my sewing and cutting tables (mom's desk is my sewing table, and I use the 3 drawers to store scissors and cutters, pins, and other notions.

I have a thread rack that I picked up at a moving sale for my better thread (the cheap stuff is in a drawer)

I use a queen-size flannel sheet taped to a piece of pegboard as my design wall (the entire sheet set was 15.00)

gallon-sized ziplocks for all sorts of things.

Oh, I am just loving these great tips from everyone! I am in the process of re-purposing my computer-reading room to incorporate my sewing machine so I am really appreciating the space saving tips. Please keep them coming.

Now that's one I've never heard before. Great, I'll try it.

I hope these qualify:
I use a receipe card box for all of my quilting books. I write the title, author and then file them. I can keep better track of them, especially if I loan one out.
I have a supply of lint rollers for rag quilts. They pick up all the loose threads faster than I can.
I also have a mid-size mirror that I hang by my quilting frame. When I want to check the stitches on the back, I slide it under the quilt and can see how they look.

Freezer paper is great for all kinds of patterns. I use it to make my own patterns from clothing that I love but are no longer good...or preserving purchased patterns that are getting tattered.
I use clothespins and/or skirt markers instead of pins to hold pieces together for sewing, unless they are very finicky. Much easier.
Have a 3/8" piece of medium density foam (I think it's packing from a computer box) under my sewing machine, that keeps it from "walking" (and as it extends out a few inches on the right, it's just in the right spot to work as a pincushion too).

Just Google Spray Starch. there are many different recipes.

No Harbor Freight within 100miles...I'll check the shipping but have wondered if the quality is the same...thanks

I have read thru this entire thread and have gleaned some great ideas! I used to use that rubber shelf liner under the foot pedal on my machine, but have found that using an old mouse pad from my office works better on my slippery tile floor!

Great idea. I have been looking to buy a cone holder but it was 29.00. Thanks you just saved me money to buy more material. Gail

I use dryer sheets in my fabric stash. I cut in half and put in between my fabric. That way it has a nice fresh smell when I use it.