The spiritual practice of helping is quite a challenge. This last week, instead of "limiting" something in your life in a fasting way, this is a chance to add something. Maybe it's a bit of fasting from our own desires.
A few ideas:
1.) Based on one of our 5 prior weeks (food, possessions, media, money and stress) decide as a family how to help out someone else in each of these five areas. This is also a challenge to see how creative you can be together.
2.) Pick one person in your family this week to help out in unexpected ways. Is there a way to plan this without people knowing who is helping them this week (like a silent "Santa")? Then you can tell each other on Easter who you were helping if they hadn't figured it out earlier. Should also show you how hard it is to be helpful without people knowing you are helping them.
3.) Thank people in your life who have helped you in memorable ways, and/or who are helping you now. Part of helping is knowing the needs of others, but also knowing how you need help, and being aware of all the helpful people in your life.