After each use: 

Swab inside and wipe joints.  Remove reed, clean mouthpiece with cloth.  Keep cap on mouthpiece when not in use.  Wipe keys carefully.  Never use metal polish or cleaning solution.

Occasionally:

Scrub mouthpiece with brush and warm (not hot) soapy water.  Be careful when assembling and taking apart – don’t bend keys.  Always use cork grease on joints.  Don’t force parts together or apart.  To clean and dry pads, insert tissue between pad and hole and press pad. 

Keep instrument in case when not in use.  Do not store other items in case that may press on the instrument.  If you have a problem with the instrument or case, bring it in right away – don’t try to fix it yourself.  Keep your instrument clean, and be careful with it.