If you are slab building, try using a scalpel for cutting your clay. It eliminates the problem of ‘dragging’ the edge of the clay. It will quickly go blunt but this doesn’t matter.
If you use a cloth for rolling clay you can sometimes have problems with stretching and therefore creasing when it gets wet. Using the reverse side of PVC coated tablecloth fabric solves the problem. It is also much easier to wash.
Mark Dally recommended using wooden ‘yardsticks’ as rolling guides. He finds that they are a very good thickness and having the measurements printed on them a bonus. Available form hardware stores or builders merchants.
He also uses a roofers square as it is larger than a setsquare very thin and again has the measurements printed on both faces. Available as above (£8.99 from Screwfix -
The perfect ‘newspaper’ for making paper resist shapes he finds to be pages from old style (before colour) telephone directories.
Tip from an American Website
If you like to make brushwork on your work, you know that brushes from pottery suppliers can be expensive, but cheap brushes don't make the beautiful fluid lines that most potters are after.
Just buy some cheap brushes and trim them.
Leave enough hairs in the centre to give you a fine fluid line and the bulk of the hairs at the base of the brush to hold your slip or glaze.
When I make lidded forms the lid sometimes gets a bit stuck after the glaze firing. If this happens I have found that putting the piece in the freezer for a few hours and then wrapping it with a tea towel and giving a few gently but firm taps with a piece of wood on the rim -