Once more question. I just got back from a trip and about to start saving/churning for next trip of unknown date.

Haven't included ebay before (just done target deals + red card %).
Would you say it was worth my time to buy the $100 ebay gc for $95? Either with or without buying the Southwest $100 for $90 with the ebay gc. (We always fly southwest.) Just trying to decide if savings is worth it. I planned to build up some churn money from swagbucks first, but saw the current gc offers and wondered. Thanks!
If you haven't included eBay in your cycle yet and are just starting to churn, presumably, with a smallish amount, I'd say it's worth picking up a $100 eBay GC for $95 if/when eBay/PayPal Digital Gifts runs such an offer. I see the sale mentioned two pages back has ended. This kind of deal is an easy way to pick up an extra and immediate $5 towards your next GC purchase on eBay.
Some people in this thread tend not to jump in on this deal because if you are using a eBay GC to purchase that $100 eBay GC for $95, that eats into the $5,000 per 180-days limit that PayPal imposes on gift card spending. (You need a PayPal account to use eBay GCs on eBay.) Preferably, your PayPal account is verified so you can use $5,000 worth of gift cards in a rolling 180-day period, or you're otherwise limited to $500 worth of gift cards per month. (If your spouse or other close family member has a separate eBay and PayPal account, presumably you can churn through those when you've hit your limit.) Every time you cycle and end up using eBay GCs to pay for Target (or Southwest, etc.) GCs on eBay, it eats away at your limit until 180 days elapse to free up that amount. So given the limit, some people try to wait for better deals like 4x (8%) and 5x (10%) eBay Bucks (which would give you $8 and $10 per $100, respectively, in eBay Bucks that are redeemable next quarter for more GCs). You cannot get eBay Bucks on purchases of eBay GCs, but do get them for Target, Southwest, etc.
If you're just starting with a smallish amount, you're probably in little danger of hitting your limit. But to maximize the real dollars saved/earned through churning, you have to do it in volume and that will run through a lot of eBay GCs
fast so you learn to be picky
.
As for the $100 Southwest GC for $90 deal, I see it's still going on (but you should act fast). I don't fly Southwest, but my understanding is that you can use only 4 forms of payment per purchase, so if your fare is more than $400, your fourth form of payment should be your credit card (3x $100 GC + credit card). Alternatively, you'll have to split your tickets into separate purchases.