I don't know if anybody has seen this before, but it looks pretty handy. You can choose how many vivs/rubs you want, add the size of the viv/RUB and it does the rest of the work for you.
I did look at that, but seems a little over the top. I've made my own without every day showing, and just left a date column. Need to add a notes section to mine tho as that seems pretty handy!!