patricej

it's a good practice to check the information at the end of the bolt no matter where you shop for fabrics.

this will be especially so if you shop in stores that carry both quilting and garment fabrics. those fabrics will usually start out displayed in separate sections, but they could wind up mixed together once they hit a sale table. check the bolt ends on any sale table to ensure you are getting the fabric/content type you want. [there's nothing wrong with using non-cotton fabrics in a quilt as long as you know that's what your working with so you can take any special care required. just check the bolt ends to ensure they all have the same laundering/drying instructions; and make sure to pre-wash all of it.]

buying solids or blenders? will you need enough to finish one bolt and cut into another? will you need more than one bolt's worth? check the bolt ends to make sure you are getting the same manufacturer, color number/code, and - whenever possible - the same die lot/print run.

no information on the selvages? check the bolt ends so you can make note of the manufacturer, design line, color/print code, and any other information you might need in case you find you must search for more of it.

etc, etc, etc.