Amazon has the Pyrex Easy Grab 4-Piece Value Pack with Blue Lids for $13.50 with FREE Super Saver Shipping and $35 purchase or FREE with Amazon Prime.
This set comes with a 2-quart oblong dish and a 3-quart oblong dish, both with blue lids. This is a great price at only $6.75 each!
Thanks, Daily Cheapskate.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.