My experience is that some particular days there are NO Surveys available, like on yesterday Saturday 2/18 (always try to take Surveys until I get the 5 max daily disqualifications), sponsored videos appear on an erratic schedule (except for a consistent chance just after 0000 EST or GMT-5) and nCraves are a PITA to get (most of the time there are "browser mismatches" and not a good use of time).

Regular videos are doable, but forget about getting the 500 MyPoints max on any day (it will take almost 1/2 a day to achieve; most able to get are ~ 60 in what I do have available) and be on the lookout for "you have AB enabled" gotchas, even if you have made the proper procedures. I do have AB+ enabled on GSN, but not on MyPoints.