One of my favorite sites is No Time For Flashcards. Their ideas are always "keepers" and whenever I visit the site I find something I can implement immediately! Check out the site on Sundays where lots of bloggers link up their "best of" posts!
Once you have gone through their site and found some activities for this week before Halloween, here is another cute one to try: Owl S'Mores. I found this at Living Locurto and just had to put it on the schedule for this week! Pop over to their website for the simple instructions.