Read the grain before folding paper

Cut strips from adjacent edges of an offcut. Bend each gently without creasing it. The direction that bends with less resistance usually gives you the easier fold.

Imagine making a set of ten A6 cards from a sheet of heavy card stock. Give yourself enough stock for a trial and a fresh start. A clean offcut from the same material is often more informative than a pristine sample from another pack. The first lets you see how your particular surface, thickness and finish respond under the same conditions as the project.

A crease parallel to the grain is likely to feel easier and leave fewer broken fibres along the outside edge. Compare the place you worked from with the place where the finished object will be seen. Something made close to the rim of the worktable might normally be used upright or viewed from a distance. Put the early sample and the finished work into that second position and record the change in your judgement.

Place a straightedge along the fold line and draw a blunt scoring tool across it once. Fold along the impression, then press it flat through a sheet of clean scrap paper.

If the bleached inner layer shows through a coloured surface, examine the test strip under a lamp before using the printed sheets. Choose a point where an attractive finish and a useful result might demand different adjustments. A tighter join, for instance, may look neater before it needs to bend. Start the trial with the practical movement and use appearance as a second check. That lets you keep a visual improvement without losing flexibility.

Try a wider score on a scrap that runs across the grain. Place the working piece and the trial next to one another before changing anything. Look first at the part that will be most visible or most heavily handled. Then look at the edge or reverse, where a surface that seemed even at first may show tension, spreading, or a break in the pattern.

Set a finished card upright and look for an uneven gap between the two halves. Light from the side of the bench makes raised fibres and shallow marks much easier to see than light from directly overhead. Move a lamp along the edge of the project and notice which marks cast shadows. A seam that looks even when the piece is flat can look different when the object is held in the hand.

Preserve one successful sample and one that reveals a clear problem. When you stand at the bench again, begin by handling that pair before reaching for a different tool. A change in stock can have the same visible effect as a change in pressure. Include the part that was difficult to cut, fold or handle, since an attractive sample has limited value if you cannot repeat the operation. Take a second look when the work is ready to leave the bench. Inspect it under a light that falls across the surface from an angle, then handle or display it normally. If the test and finished pieces disagree, compare the order of operations and the piece's orientation before repeating an entire project. For a long landscape card, place the grain parallel to the longer hinge even if that orientation yields fewer blanks from the parent sheet. A useful reference preserves the decision as well as the appearance. Write the material, the method and the particular thing you checked, such as the ease of movement or the appearance of the edge. If you later change a tool or buy another batch of stock, use the old reference as a comparison and refresh the note once you have tested the new setup.

Keep both test strips with the stock label so you can identify the grain when you open the pack again. Write down the order of operations while there is still an example in front of you. It can be difficult to distinguish a mark made before a piece was formed from one added after the material became difficult to reach. Put a brief note beside the first operation you would perform differently.