Survey Hacks (Tips & Tricks)
1. For coupon discount rewards, there's most likely no limit to how many times you can complete the survey and get your free coupon, do it every day if you'd like (valid survey invitation required).
2. If the survey reward is a sweepstakes entry, check official rules for max number of entries per entry period. Typically you can enter multiple times to increase your odds of winning the grand prize.
3. No survey invitation? No problem! Just go buy something inexpensive, save the receipt - bam, you should now have a valid survey invitation to complete the survey.