Oops - forgot I was taking care of their house :-S
Last week MIL emailed me asking if I would take in their mail and paper and feed their cat a few days this week. I said yes - and even put it on both the wall calendar and my computer calendar.
Late last night as I was falling asleep it hit me that I was supposed to be taking care of their house yesterday! OOPS!
I did go over there first thing this morning. I just have so much stuff going on right now that I completely forgot about their trip! Thankfully - MIL over-feeds the cat when they go away and the cat had 2 bowls of water and 2 bowls of food when I got there (all the bowls are soup-bowl sized).