REALLY cheap 2 liter 7Up/Sunkist/A&W (maybe Canada Dry)...under $1.00

Alright, this may not be as good as the 2 liter bottles of coke, but since I'm a Sunkist fan, the extra few cents is worth it.

4 2 liter bottles of 7-Up/Sunkist/A&W Root Beer (mix and match) and possibly Ginger Ale, for $0.08 + CRV + tax (on $3 and change)

Yup $0.08!

Here's what you do:

Go to Rite Aid and buy 4 2 liter bottles of 7-up products as mentioned above. They should be on sale for the great already low price of $0.77 each.
Once you've bought them go to:
https://riteaid.rebateplus.com/
If you already have an account, great, sign in, if not create one.
Once you have signed in, just enter your receipt information.
And then at the end of this month, you can request a $3.00 rebate, sent to you via mail. No stamp required.

Quick summary: Buy 4 7-up 2 liter bottles @ Rite Aid. Enter receipt at Rite Aid rebate site. Request rebate at the end of the month.