With my mind on making clothes, I started thinking about how you can make articles of clothing with specific intentions. You could have an outfit that resonates with stealth and invisibility, to keep people from noticing and/or approaching you in public. Conversely, you could make one for meeting new people. You could have an outfit solely for ritual, one that evokes a sense of calm and clarity. You could have ones for luck, safe travel, anti-anxiety, whatever.
As a rule of thumb, you would want the physical appearance of the clothing to correspond with its intention– the incognito outfit, for example, would most likely be neutral in color and mundane in design. The type of material used would be another quality to take into consideration. For ritual clothing you might want something flowy and comfortable. Personally, I would opt for thin, sheer fabrics when designing a ritual outfit as a representation of the thinning of the veil, so to speak. You could even embroider sigils onto clothing.
The energy put forth to create is powerful. Sewing is a great opportunity to imbue your intent into something functional.