Suits do not benefit from being dry cleaned and it does shorten their life. As a result they should be dry cleaned as seldom as possible. Do not put heavy items in the jacket pockets, as it will pull the suit out of shape. One way of improving durability without buying so many suits is to buy an extra pair of trousers. Typically the trousers will tend to wear out first as the jacket is often removed at work.

Shirts can be sent out for laundry. Do not dry clean your shirts and avoid using starch.