I always just found it easiest to remember the summer months (July and August) are the back to back 31 day ones, and the rest alternate. Add to that, there are

I always just found it easiest to remember the summer months (July and August) are the back to back 31 day ones, and the rest alternate. Add to that, there are plenty of "anchor" months to start from, which you know without having to figure it out. (Presumably you remember that February is short, that Halloween is Oct. 31, and that New Years Eve is Dec. 31, for instance.)