Buy stainless spoons (both slotted and non-slotted) which are solid and won't bend no matter how tough the job. Also, buy several high quality wooden spoons for stirring delicate dishes like risotto (the sharp edge of a metal spoon would cut or bruise the rice).

An absolute must with a million and a half uses. But do not buy just any plastic wrap. Go to a restaurant supply store and buy a large roll of restaurant plastic wrap. It sticks much better than the common grocery store plastic wrap and is much cheaper per foot.

When cooking potatoes to use in potato salad, add a little vinegar to the water when boiling the potatoes. The vinegar causes the potatoes to form a thin crust, which helps them hold their shape