Yes,

I agree that giving a small token of gratitude - especially if it is homemade. There are recipes online for candles, soap, you can grow herbs like lavender and make bath salts, or baked goods. I used to bake doggie biscuits. Also, see if there is any way you could repay the favor. Like if they need a person to pet sit or meet the cable installer at their house. I would absolutely get their addresses and send regular holiday cards. One thing I do, and I hope I'm not being totally rude, is used to forget people who are not on disability have different schedules. So, I try to stay cognizant of that fact and always leave an open exit during our visits. I have a lot more free time because I don't work 60 hrs a week and have 3 kids.