When working with struggling readers, of of the things I found hardest to teach was *when* they needed to stop and think while independently reading. Students who could answer deep questions during read aloud lost all ability to do so when it came to their independent reading -- even when they were ostensibly reading "just right books." I created thinking prompts for certain books, allowing students to "stop and jot," but given them a little direction. This eliminated a lot of the lame post-its like "wow" or "I think Alex is nice," and helped raise reading levels.
For kids who needed less support, I created "jump starts," like this one for Skinnybones. I asked pointed questions for the first four chapters, then put blank post-its in important spots for the following chapters to help remove the scaffolds.
**You can print these on regular sized post-its with a little trial and error.