I don't even start thinking about what I'm doing on a given day until I have a little caffeine in my system. The makers of Write-On Glassware have realized I'm not the only one and have come up with a coffee mug that you write on as you sip your morning brew. They also offer a tumbler--in case your morning routine focuses more on juice than on coffee or tea.
Both are glass with a special surface added on the outside. The surface comes preprinted with lines and times for a schedule, and you can write on it with just about any pencil. When you're done, just erase your notes. It does seem that pencil is the only recommended writing tool for the mug--pens and markers aren't as simple to erase. The Write-On Glassware comes with a miniature pencil.
The Write-On Glassware is ideal for notetaking: it's much harder to misplace than a scrap of paper. It appears that the mug is hand-wash only, but the glass surface is easy to clean. The mug is 3 inches by 3.5 inches, while the tumbler is 3 inches by 6 inches. Both are priced at $16.