Prioritize your calls and return them accordingly. You may need to cancel or reschedule your appointments. The TV is your friend. This will help prevent complaints they are bored with the ones you already own. This is the perfect time to introduce your grade-school child to a treasured book from your childhood or a new hobby.
Stamp collecting is a great past-time for a kid who's stuck in bed, and it's educational, too.
Your pre-schoolers will enjoy a gift of some new coloring books, crayons and sticker albums. However, their short attention spans probably ensure that they will get bored again pretty quickly. Have plenty of comfort foods on hand. One mom I know asks her pre-teenage kids to give her a shopping list. Look in your Yellow Pages under or use your favorite search engine to see what's available in your town.