How to fold a fitted sheet:
Husband: Look for a corner. Not finding a corner, grab anywhere and ball it into as small a ball as you can.
Wife: Slip non-dominant hand into corner with seam on outside. Slide dominant hand down side to the next corner. Slip the corner over your non-dominant hand with the seams touching each other and the finished seam on the outside. Slide dominant hand down side to the third corner. Continue by repeating from the beginning. Lay your pocketed sheet on the bed and straighten the sides. Fold sides together until sheet is small enough to fit into a pillow case.

Finish folding a sheet set:
Fold flat sheet by matching sides until sheet is small enough to fit in a pillow case. Fold one pillow case to the size of the folded sheets. Place the sheets and folded pillowcase into remaining pillow case. Fold side over and place in storage.