Amazon: http://www.amazon.com/Claritin-Allergy-Liqui-Gels-10mg-24/dp/B002SVJ0AU/ref=pd_sim__1
has Claritin Allergy Liqui-Gels for $3.99 plus free shipping for the 24
count box. (about $0.17 / pill)
From the reviews it seems that the expiration date is within six months of
the purchase date, but for those that take Claritin often, this is huge.