Upon hearing of a friend's life-changing situation, people frequently feel the need to know more, to help and to reach out to their friend. Quite often, by the time the news has "made the rounds," the friend-in-need has tired of telling the story and of being identified as "the one with cancer" or "the one whose husband was in the accident" or "the one whose house burned to the ground."   Obviously, your friend's situation is going to be the center of many conversations.  But, the WhatFriendsDo concept of special cheer days can make it much easier for you to focus your attention on the person rather than the situation.  
 
Here are some examples of ways to make your contact with your friend personal:

August 19 is Summer Salad Day.   Call your friend and let her/him know about this day and extend an invitation to enjoy a salad together for lunch, or offer to drop off a little salad buffet for the family.  Opening the conversation this way is a whole lot easier for everyone than saying "I know you're going through a rough time so I would like to bring food."   Sure, it may sound simple or even petty, but it truly will make a difference to your friend.
 
August 24 is Lick a Stamp Day.  Purchase some cute, simple thank you notes with a pre-printed note of gratitude.  Go to the Post Office.  Purchase stamps.  Call your friend to say "I just left the Post Office and I have 3 books of stamps and the cutest little thank you cards..  I know you have been upset about not getting thank you notes out to people, so would it be OK if I stop by for half an hour to get you to sign your name to the cards, and then I'll put stamps on them and mail them for you."   This allows you to visit with your friend, and will alleviate a huge burden.
 
August 26 is National Dog Day.  As much as a pet can be a comfort during rough times, chances are the family dog is not getting adequate care or attention.  Your offer to walk the dog, take the dog to the groomer, or even just stopping by with 'treats' for the pup will be so welcome. 
 
The bottom line: have a specific purpose for your phone call or visit other than checking in to see how things are going.  An offer of something specific is much easier for your friend than the open ended, even though well meant, request for a call if anything is needed.