If you want to do something really helpful, go rake the yard for them or something like that. Often, no one in the house has the ability or energy to deal with basic chores, etc. When my mom was sick, I spent a week just feeding her, cleaning (major cleaning, not just little stuff), doing laundry, organizing the house, etc. Plus almost taking her to the ER one day, but ended up not needing to do that at least.