I highly recommend looking beyond just the surveys and even the videos. They are a number of very easy and far more valuable offers that can be completed. Trial Pay and Sponsor Pay are both very easy to deal with - even if they don't pay me right away, working with their support staff tends to be pretty easy. Supersonic Ads may not be as easy to deal with but a little perseverance usually works. I simply try to stay ahead of the curve in terms of when I need X amount of credits by and the support staffs clear things up quickly enough to where I'm not getting impatient.
Keep in mind, Trial Pay is the one offer provider where choosing offers to complete is pretty cut and dry - there aren't may offers that aren't what they seem. Sponsor Pay, Supersonic Ads - lots of "surveys" that are tied to "Win lunch for a year!" or "Win a $500 gift card" or iPads or you get the picture - avoid them. It's a pain for sure, however there are plenty of other useful offers in there. Any of that annoyance is better than sifting through the Peanut Lab surveys to find the one in five or one in ten that you qualify for.
Many free offers and trial offers are worth it. Look at the credit score offers, especially at Sponsor Pay. They're either free or maybe even cost $1 but pay out 1,500 or more credits, as high as 2,500 that I've earned. I don't plan on spending any money on this game but there is a MyScore offer where for $1 you can earn $17.77 worth of credits. That's a value. Same for PetsPlus presciption service - the first month is 99 cents and it's worth over $10 in credits. Just remember to end your membership before the trial ends and you won't be charged.
If you absolute don't want to ever pay a single dollar, you're in luck. Plenty of free offers and trials to earn 100, 500, 1,000+ credits. Audible.com is paying 600+ credits for you to register and download a free ebook. Trial Pay and especially Supersonic Ads have mobile app offers (download this app, run it, earn 50-100 credits each). I mean good Lord, through Sponsor Pay I earned over 3,900 credits on one offer without paying a dime. I registered for a seven day trial of a premium CBS Sports fantasy baseball league. I didn't even have to enter a credit card. That applies to other trial offers, some don't require credit cards. Some are okay with you providing PayPal info (so they can charge that IF you don't cancel before the seven or 30 days is up).
I've talked to guys who grind out the surveys and videos for 1,000 credits a week. Some people have to, they don't have the option. At least for US residents, there are plenty of useful offers that would allow them to make 1,000 or 5,000 or 10,000 credits in less time. I'm not gaming the system either. I'm not breaking any of the offer providers rules...come to think of it, imagine how many credits multi accounters could earn that way alone. Jeez. I digress. The image above, I didn't complete all of those offers in one day. A couple are support tickets that they paid out a few days after completion.
Apologies for ranting on about this & for the novella-length post. Hopefully this is good information for someone. Hopefully a few people figure out that the offers aren't all "earn 500 credits when you spend $49.99 for a waterproof watch through Acme" or "10 credits for every $5 spent at Zappos.com"
Note: if you live outside of the US, I have no idea if you see anything close to a useful offer. I'd reckon you do. May have to dig around a little is all. If you are in the US, I'll be glad to answer any questions if it'll help...just don't ask me and then when you have trouble with an offer or it isn't paid out ASAP don't come shouting at me (it has happened, plenty of times, like I'm the one responsible). I don't work for any of the offer providers. God knows they should be paying me - I'm trying to drive traffic to them. They earn revenue for the offers we complete, hence why some are worth far more credits than others. I'm not revealing some big secret where they'll say "Oh no, too many people found out - quick, make the offers worth less!" Quite the opposite, I imagine they'll be pleased.
Best of luck everyone. I'll step down from my soapbox now.