The pad that you used here reminds me of my schools days. I used to have a pad like this with paint and pieces of paper pasted all over it.
When it comes to being a messy drinker i am an expert in this. I don't remember how many shirts of mine have tea stains on it.
My drawing board does get very messy, but i like the build up of paint and doodles, it adds character :D
Thanks for your comments, and i hope you get those tea stains out!