Always do what you can do instead of worrying about what you can't.
To see like a customer, be like a customer.
Always be kind in your heart, spirit and mind.
Are you doing only what you must or doing all you can?
Double-check your voice mail message. Listen to your on-hold words and music. Write welcoming scripts for your telephone team. Pay attention to the music in your office and lobby areas. Make sure what your customers hear sounds good.
If it's not impossible, you may as well try. If it is impossible, at least you'll find out why.