Why are weekends so hectic?

Let me tell you what was happening at our house over the weekend…
 
On Saturday we had Wyatt and Theo’s “Boys will be Boys” birthday party from 3-6 p.m. (I can not believe they are eight years old!) In total, there were 17 kids. Thankfully, the gorgeous spring-like weather allowed us to hold many of the activities — ranging from road hockey to a “ninjago" obstacle course to a water balloon fight — outside. (We had initially planned to have a snowball fight but had to adjust accordingly!)

Inside, the kids had Hot Wheels races and competed in a Lego-building contest. (We scooped about two cups worth of Lego into a large Ziploc bag and gave one to each kid. They had 10 minutes to create whatever they wanted, and then there was a secret ballot to decide whose masterpiece should win a prize.) Add pizza and cake, and the three hours flew by. I am happy to report there were only tears from one guest, who accidentally dropped his Lego structure — but he was able to put it back together and ultimately won first prize.
 
After the guests left, we tidied up (a bit), and then literally put our feet up and watched Diary of a Wimpy Kid: Dog Days. (Thumbs up from all.)
 
Sunday found me at the grocery store by 9 a.m. and then we all rushed out to Jay’s parents house for my father-in-law’s birthday lunch. We left at 2 p.m. to head to the guys' hockey game in Unionville, Ontario, about an hour and a half away. We joined some teammates for dinner afterward, and didn’t arrive home until 9 p.m. 
 
I wish I had another day to get caught up on all the things that didn’t get done. (Must give credit where credit is due: Jay did laundry and vacuumed over the weekend and Milla made lunches for herself and her brothers last night. Much appreciated!) I fully admit that sometimes I have a hard time staying on top of everything.
 
This week, things seem a bit quieter: Other than having the boys write thank-you notes for their birthday gifts, the kids have their regular extracurricular activities and I am finally seeing my hair dresser (my grey roots are out of control). My work schedule looks manageable, too.
 
And, in case you thought I was just mindlessly rambling without a point, I have a question for you:

How do you keep track of your family’s schedule? Do you keep a calendar on your fridge, or have you gone completely digital? I alternate between the two and I really want to tell you that I am super-organized, but it would be a blatant lie. We are working on our March issue right now and it's all about organization, so I am a woman possessed.