Through 11/23, CVS has Lysol Toilet Bowl Cleaners on sale BOGO. Pricing is around $2.79 at most stores, so just $0.89 each when you buy two and use two coupons. Make sure you pay attention in case the CVS registers try to disallow the second coupon. Per the CVS coupon policy, you may use a coupon on the free item in a BOGO sale.
At CVS through 11/23:
BUY TWO LYSOL TOILET BOWL CLEANERS, on sale BOGO $2.79
Use two $0.50/1 Lysol Toilet Bowl Cleaner printable coupons (preclipped)
NET PRICE FOR ALL: $1.79 (or 89 cents each!)