Preserving antiques is all about the handling. Or not handling, as is often the case.

Because your hands sweat, sweat is acidic, and acid can damage antiques.

For instance, when acid is transferred from your hand to a metal antique, it causes oxidation.

Which is why metals should always be polished with gloves or cloth, and not be touched afterwards.

Antique wooden furniture can be touched - but should it be restored?

The prevailing wisdom says "no".

Collectors want their pieces as close to the original state as possible.

In the past, collectors used oil on leather-bound books to slow down the inevitable deterioration process.

But there are other ways to care for them.

Keep them away from high temperatures or extreme humidity, which means--don't store them in the attic or the basement, where climate extremes can be hard on them.

But what about old flags or quilts?

Don't dry-clean them- the process can be very damaging.

But washing them can cause the fabric to weaken and the color to fade.

A handheld vacuum is often the best way to clean fabric - but handle with care.

You don't want to inadvertently pull up old threads.

And never use a Dust Buster on painted fabrics.

Finally, keep your family heirlooms in a preservation-friendly environment.

Avoid basements and attics, remember the heat and humidity; and try to avoid the sunlight, too.

Nothing lasts forever, but taking proper care of your antiques can help them live to a ripe old age.