Here is a cheap way to get your calcium supplement!  Walgreens has Caltrate on sale Buy One Get One 50% off.  Plus, there is a $5.00 mail in rebate for Caltrate that can be found in the Walgreens October coupon booklet.

Caltrate 600 D or 600 D Plus, 60 ct $8.49
Buy One Get One 50% off
Buy 1, Receive $5.00 Mail in Rebate, Limit 1
Use 2 $2.00/1 Centrum or Caltrate, any excluding Trial Sizes from RP 8/14
And Use $1.00/1 Caltrate Product, Walgreens Coupon from RP 9/25 (will take off $2.00)
Pay $6.74, Submit $5.00 Rebate

Final Price:  $0.87 each when you buy 2

Thanks, Wild for Wags