Buy a Protected or Corrected leather type, best for children or pets.
When buying sofas, look for removable cushions without an end "T" shape, so that they can be rotated at least every 6 months for optimum wear.
Keep furniture away from uncovered windows…to avoid bleaching and dryness.
Regular maintenance is a must, especially in Arizona. Many years of use and enjoyment are extended when cleaned on a regular basis. Remember you change your linen on a regular basis because it comes in contact with your skin, then why neglect the cleaning of your leather that does the same? Leather does last 4 - 5 times as long as fabric when maintained.
Your leather goods, apparel, handbags, etc. should be stored in clean cotton bags and covers. If leather furniture is being stored, make certain it s cleaned and thoroughly conditioned to prevent drying out. Cover with cotton sheets, to allow it to breath. Never use plastic. Store in a climate-controlled facility.
Stay away from leather cleaning kits…as they give you a false sense of protecting the leathers, when in fact, all you are doing is dusting. You may also be using the wrong substance and cause irreversible damage.
Note that Aniline goods - knows also as, Unprotected leather, must have more frequent cleaning as there is no barrier to prevent soiling. Aniline is often used in handbags - especially leather straps and handles...do not wait until heavily soiled. When Unprotected leather is used in furniture, best to use a throw or afghan to protect areas that come in contact with the neck or hair as oil transfer creates darkened areas. Avoid using sunscreen and then sitting on leather without a cover to keep from transferring oil to the leather...no damp bathing suits as well. Dark areas cannot be restored readily.
If you encounter ink...Do Not try to clean with water as this can set the stain..
Never use nail polish remover, cuticle remover or any type of solvent. The "How To" books have often suggested these types of products and caused infinitely more damage.
Never scrub...just remove excessive liquid or residue with a clean dry cloth.