Just made it to 63 items today. I've been trying to perfect a sort of assembly line method which really helps:
*Complete all shopping for materials for new designs within 1-2 days
*Do all cutting for multiple designs at one time
*Sew one item and then list as 2 (When one sells, everything is ready to make the 2nd item. If 2 items are sold, I can make the 2nd item within 3-5 hours and still make shipment within 24 hours. If I ever start selling more frequently, I'll just make both items at once. But for now, this method allows me to offer variety as well as increase # of items.
One a week has really helped me to keep on track. No one polices me, but I don't want to miss even one week!
Thanks for asking!