The price for Rogaine $29.99 which is the second lowest price ever on Amazon (was $29.95 back in Feb 2011). Since then it has only gone below $36 three times (according to the camels) so this is a good price from Amazon.

If you have 5 subscribe and save items that brings it down to $25.49.

Then there is a $5 rebate from Rogaine you can get here – https://www.rogainerewards.com/feature.pg Looks like this is only for new members to Rogaine Rewards. The rebate is fulfilled online so there is nothing to mail in but you do have to wait for the check. This brings the price down to $20.49.