Notions are a term used in sewing and haberdashery to refer to small objects or accessories that are used in the sewing process or attached to a finished article). They include items such as buttons, snaps, collar stays, needles, thread, pins, marking pens, elastic, and seam rippers). Notions are almost always used in the plural form). The term is chiefly used in American English, while the equivalent British term is haberdashery). A fabric store will have a section or department devoted to notions, and a spool of thread is considered a notion).

It is important to have the right sewing notions for the job, as they can make a huge difference in the creative process. Sewing notions can be broken down into several categories, including sewing notion tools, cutting tools, fastening sewing notions, embellishing sewing notions, and tape sewing notions. Examples of sewing notion tools include rulers, scissors, and pins, while fastening sewing notions include buttons, zippers, and hooks. Embellishing sewing notions include trims and accessories used to finish a sewing project, such as ribbon and elastic.

It is also worth noting that the term "Notion" can refer to a productivity and organization app called Notion. However, in the context of sewing and haberdashery, the term refers to small objects and accessories used in the sewing process).