Generate a full, in-depth guide on harvesting and storing summer vegetables. The guide must be a practical manual for late summer. For each of the following crops (Tomatoes, Squash/Zucchini, Peppers, Cucumbers), provide: 1. Clear visual cues on how to know when it's perfectly ripe for harvesting. 2. A guide to the best harvesting technique. 3. Detailed instructions for short-term storage (on the counter vs. in the fridge). 4. A simple method for long-term preservation (e.g., freezing or canning). Please include a supportive disclaimer.