Here's a great way to keep track of your daily water intake. Draw lines on your water bottle with a marker pen, and then write the time beside the marked level.
If your ring gets stuck on your finger Windex will slide it right off.
Fill some water bottles halfway, then lay them on their side in the freezer. When it's time for a cool drink, grab a bottle, fill it up with your beverage of choice, and let the wall of ice in the bottle keep your drink perfectly chilled.
Instead of hanging unsightly fly paper, take a cup, fill it with an inch of red wine vinegar, seal the top with plastic wrap, and poke a few small holes in it with a pen. The flies will be attracted to the scent of the vinegar, but won't be able to get out.