L'il Goodie is a point system made by Greg for Rowley when his binder of Good Boy Awards was filled. It appears in Diary of an Awesome Friendly Kid.
Greg said that he would give Rowley a L'il Goodie every time he did something nice for him and once he got 50 points, he'd get a prize which was under a sheet in his bedroom. Rowley spent about a month doing stuff for Greg, and he was ready to turn them in, but Greg said that since it was the first day of the month, the points got reset back to zero. Rowley asked Greg why he didn't tell him about that rule and Greg said you never asked. Rowley yanked the sheet off the prize, and it turned out to be a laundry basket filled with dirty clothes. Rowley called Greg a crummy friend, but Greg said the real prize, which now cost 100 l'il goodies, was locked in the basement, and it was just a test to if he would peak. Rowley then said he's no fool and he is going to take his time earning the goodies.[1]