Because my favorite drink/food is milk, the no-milk rule has been hard. My dad tried coconut milk and liked it, but I tried it and it was disgusting! Coconut milk is too sweet. If you like vanilla milk, you might like it, but I thought it was sickly sweet.
Almond milk is better, but you can taste an obvious nutty flavor. I also did not like that one because nuts are not one of my favorite foods.
I recently got vanilla enriched Rice Dream milk, and I thought it was much better! The vanilla flavor is not super strong and it masks any rice-y flavor. Original rice milk is also good, but you can taste a kind of strange aftertaste. I like original in cereal but vanilla to drink. Normally I have water. It is better for you and less expensive. I am also trying caffeine-free herbal tea. I tried cinnamon apple tea, but it was gross. Vanilla chamomile is pretty good!