How to fold fitted sheets:
I folded a fitted sheet once... so proud of myself! They are still up in my closet getting dusty in case I ever need different sheets, but like many people, I just launder the same set of favorite sheets to put on my bed week after week, so I don't have to mess with trying to fold anything!
I roll them up in a ball.
Do you know that's what you Must do with other textiles, such as sails? Otherwise they get weak along the fold lines.
Good enough for sailing yacht owners, good enough for me!
@AnneWimsey I actually do a modified fold.