I have also had some really good luck with the Dollar Tree lately. If you a Facebook follower then you probably saw the picture of the Birthday Chair cover. A few days ago I found these letter magnets that I plan to use with a cookie sheet for a word box.
I have also found some cute dry erase books that the kids can have in their work drawer to practice handwriting, matching, colors, etc.
Another cool find was the Alphabet Dominoes. I laminated them for some additional durability. The kids have already played this game with success and enjoyment.
If you are looking for more tasks I have a pinterest board dedicated to them or check out the others I have posted on the blog by going here!