What I don't want to sew again any time soon ...

 In no particular order ....

challis

chiffon
fabrics that right and wrong sides are "almost" identical

prints that are difficult to see markings

ruffles

ruches

gathers

wool (sewing-friendly fabric but it makes me itch)
drapery fabric

I know I will sew some of the above again, but not any time soon.