Has anyone homeschooling tried using color coding for their daily routine/curriculum schedule?

Looking for some new and creative yet simplistic ideas for homeschooling. Has anyone every tried using a color coding system with their kids' daily routine? I recently found some really neat magnetic vinyl pockets which can be used on a refrigerator or on the back of a metal door. I was thinking it might be fun to use different colored strips of card stock, say per subject (so my kids would know what to expect each day). OR, how about laying out a colorful t-shirt in the morning for a surprise field trip day? Upon seeing the t-shirts in the AM, they'd know we were heading somewhere for an outside learning activity. Our kids are still young enough to go along with such a routine and enjoy the fun aspects involved. We also have toddlers. I was even considering a different colored t-shirt for myself as a means of being ultra organized each day. Between paints, Play-Doh, and poop, it sounds like a reasonable wardrobe option. Just trying to keep things interesting and fun for our family. Thanks for the thoughts.