Department of impossibly awesome: Samuel Beckett pitching gag ideas to Ernie Bushmiller.
I think the problem you're having, Sam, is the same problem any literary man might have. You're not setting up the gags visually and you're rushing to the snapper. It seems to me you've got the zingers right there at the beginning, in panel No. 1, and although I have to admit you got Nancy and Sluggo in some crackerjack predicaments, I don't see how they got there.
For instance, putting Nancy and Sluggo in the garbage cans is a good gag, but in my opinion, you can't have them in there for all three panels. How did they get there? Same thing when you had them buried in the sand. I like to do beach gags, but I don't think that having Nancy buried up to her waist in the first two panels and then up to her neck in the third one is adequately explained, and I've been at this game for a while now.
