Deal is a bit tricky, but moderately easy imho.
Need two browsers, one with cleared cookies (aka "private" browsing etc.)
(Free Shoprunner membership: http://www.fatwallet.com/forums/hot-deals/1245404/)
In the first browser:
Right click on the item and open in new tab.
Copy the web address of the item(s), and paste them...
In the second browser:
Add ONE to cart (we don't want activate the "Buy 2 get $2 off" coupon yet.)
Note that price in cart represents BOTH discounts. $3.51 instead of $5.49 (for the 150 count Tums), or $3.19 for the $4.99 or $3.83 for the $5.99.
If price in cart does not represent both discounts, try re-clicking the above links and/or clicking on any discount banners that come up after them. If price is still not showing correctly, clear cookies and try again.
After price in cart gets updated, NOW click the item quantity in cart and update to 2. Price should drop to $5.02 for 2 Tums and $5.66 for two Alka-Seltzers.
Happy shopping! And Easy heartburns