Almost every day there is an article that mentions washing, or not washing fabric before using it. That's OK, but there is a way to do it easily and w/o having to iron when you are done. AND you might ease some other laundry problems you have.
When you wash BEFORE cutting and quilting you ensure that you won't have shrinkage and you catch any fabric which has a real "loose" dye problem. This scares me the most because my very first quilt had me in tears when I took it out of the washer (I wash a second time before I give a quilt because some of my work is on the floor, often unintentionally).
So, why not wash your fabric? The most often reason given is that you have to use pinking shears or baste the edges before you wash so the edges won't unravel. That is a problem I've never faced because I don't use really loose fabrics for quilting; they will pucker later, also, if the quilt is used as a bedcover. I put all the fabric I use in the washer on "delicate" setting and hot water and have never had any unraveling except when the cut at the shop was way off the straight of the fabric weave. That's better to know than not to know about, isn't it? Also, I can glance at the edge of a piece of fabric I intend to use and see the little 1/16" frizz and know it's been washed (and thereby, tested).
Another reason given is that some quilters like the antique look of fabric that has shrunk a bit when washed the first time after it is made. If you are using more than one fabric, or doing triangles, or ????, then you fabric may shrink in different ways and torque the fabric in mysterious ways. Another... some of us are allergic to the various acids, etc., used in manufacturing fabric and do better w/o having to deal with it.
I dry the fabric in the dryer (if you don't think dryers shrink you should mark a tee shirt and never put it in the dryer and not mark another of the same and dry it, and then compare over time!). BUT, take your fabric out BEFORE it is totally dry!!!!! Drape it over the back of your couch if you don't have a drying rack. Clothes that are over-dried are wrinkly, and "over-cooked" fabric is a nightmare. Remember the "press, don't iron rule? To move you iron up and off, down and on something which has been torqued out of its mind is a time-consuming nightmare! Just take it out when it is warm, but still has obvious moisture in it (almost dry) and it will dry very quickly, and be very relaxed fabric... NO IRONING needed. This is true with all fabrics, even when they are clothes. (One of my daughters couldn't believe the mess her clothes were in after being washed and dried and the repair man told her it was a washer/dryer set up, and she was cooking her clothes. She was young and beautiful at the time, so it was all OK.
If this helps some of you, I'll be happy. It seems sort of selfish not to share such a simply thing that could help others. I hope it does help someone.