I know the savings thread can get super long! I'll try to give you some basic info based on what I do. I am by no means a churner, it can get too complicated for my usual sleep-deprived brain plus I live in the boonies so no big shops near me.
- I get Visa cards or Paypal on Swagbucks - the Visa card is usually on sale, not huge saving but every little bit helps!
- Add the Visa to my PP account and make it my "primary" source of funding - when you add the card you see how you can change it, it's just a click

- Go to the RetailMeNot (what everyone calls RMN) site, see if there are any deals. I have done 3 deals so far - Disney Store had a $10 cash back $65 purchase and Staples had a couple of offers, one was $15 cashback from $75 and the other was $20 back from $90. Right now Disney has $10 cashback off a $100 purchase, and Target has 3% cashback.
- Click on the link you are interested in and make your purchase (like you would with the Swagbucks shopping portal).
- In a couple of days you will see the cashback pending on your RMN wallet and then it is 45 days before it credits.
The actual small print on RMN says gift cards are not eligible for the cashback offer but so far it has been working. I do not buy anything I would not be happy with even w/o the cashback. I get Disney cards because that is what I would have gotten with my SB PP money anyway - if I get the cashback great, if not it is ok too.
With the Target deal I would go through RMN and use my Target RedCard to get Disney cards - you then get 5% at c/o plus the 3% cashback. Then I would transfer my SB PP money into my bank account and use that to pay off the RedCard.
If you have a
Best Buy near you SB has a really good deal with a special bonus plus % back. I have only been able to do it once since our closest BB is 2 hours away, check the Disney Gift card thread for that info

There are also CC deals - Amex sometimes has discounts for Office Depot/Max and people get "Happy Guy" or "Happy Lady" cards that then can be used at certain stores (Lowes, Bed Bath & Beyond) to get Disney cards at a discount. Again, closest Lowes/BBB is over an hour away from me.