Amazon has awesome prices on the Melissa and Doug sticker books! And they have both the girl set and the boy set on sale! We have both sets in our house and the kids got them last Christmas and we still have 1/4 the stickers left for them to use and they make pictures just about every day using the stickers so there are a TON of stickers in these sticker books!
You can snag the Melissa & Doug Sticker Collection – Pink for $5.74 down from $17.19
They also have the Melissa & Doug Sticker Collection- Blue on sale for $5.65 down from $17.19
These and other Melissa and Doug Sticker sets are on sale for up to 75% off on Amazon right now and they ship free with Super Savers Shipping!