My total Flake-Out

I pride myself on not being too dippy in the head, that is, I don't make promises I don't keep, and I usually know where I am going and what I am doing at most times. However, I had a major moment last Fri night, and I am throwing it out there so that your dippy moments look better by comparison.
I had a lot to do on Thursday and Friday, so I made lists and wrote down what I needed at stores, and that type of thing. Brianna was at Gramma's house for the long weekend, so at least I didn't need to keep track of her or entertain her while I was trying to do it all. Not all of it got done, but that is typical for me, in that I write everything out, but in descending priority so that if the last things don't get done, it is not so big a deal. But I didn't write down my appointments, figuring I had them on the calendar and in my head. I was staying in town specifically to go to book club on Friday night, otherwise I might have gone to fetch Brianna earlier.
So I spend a total of 5 hours (over two days) waiting in the smoky lounge for my car to be checked and maintained for my upcoming long drive. I went to four stores out of the six I had intended, but was frustrated because the grocery stores no longer carry Marianni dried cherries which are the only good ones as far as Brianna and I are concerned. I worked on painting, I strung beads (for Mom's B-day), and I knitted (for potential cold weather on upcoming long drive). I watched some garbage on TV for the first time in months. I planned to come back early on Sunday to watch more of the Complete Jane Austen on PBS, wondering how they were going to fit Emma which took 14 hours of CD time into two hours of viewing time. I swept the roof (inhaling metric tons of pollen), vacuumed the porch, sold my iPod on eBay, raked five can of leaf litter, had a teacher conference at Brianna's school (very favorable), washed five loads of laundry, planted daisies, watered them, and grilled some steak, all by Friday afternoon. I was beat! I was considering one more errand to Kmart, but decided to postpone and went to my room where I was confronted by the two remaining loads of laundry yet to be folded and put away. I did that and sat down to read and then paint. It was 9:30pm by the time I remembered my 7pm appointment at BAM. The irony of reading when I should be at book club made full impact. Last month it was just me, wandering the lonely aisles of BAM on a Friday night, wondering why no one can bother themselves to come to a book club meeting if they love to read so much and why are they so busy anyway. And then I obviously couldn't be bothered this month and left some other poor soul to wander the aisles alone. I really had meant to go, I had it scheduled and everything. Why did I forget? Had I gone out on that last errand, it may have occurred to me as I passed BAM as a 'yoo-hoo, shouldn't you be somewhere' little bell going off in my head. I was too tired, too busy, and I let someone down. And all I can do is email my profuse appologies and kick myself mentally. I hate failure, the more so when it is in myself.