There is a new coupon available from the Village Company (makers of Mr. Bubble) that I got in my e-mail. But everyone should be able to print it. The variety of smaller size Mr. Bubbles bottles available at my store seems to be dwindling, but they do still carry the Mr Bubble Extra Sensitive in the 16 oz size.
Maybe others will have more to choose from, but you should find it priced low enough to be able to pick it up for under a buck after the coupon.
Mr. Bubble Extra Sensitive 16 oz $1.77 (Regular Price)
-$1/1 Bath or Shower Product from the Viillage Co. PRINT
= .77 cents each after coupon