diff --git a/foodie_utils.py b/foodie_utils.py
index ff46f45..9833897 100644
--- a/foodie_utils.py
+++ b/foodie_utils.py
@@ -62,12 +62,19 @@ def save_json_file(filename, key, value):
         # Remove duplicates by title
         data = [item for item in data if item["title"] != key]
         data.append(entry)
-        # Special handling for used_images.json to save as a flat list
+        # Special handling for used_images.json to save as a flat list with one URL per line
         if filename.endswith('used_images.json'):
-            # Update the used_images set directly to keep it in sync
             used_images.add(key)
             with open(filename, 'w') as f:
-                json.dump(list(used_images), f)
+                f.write('[\n')
+                urls = list(used_images)
+                for i, url in enumerate(urls):
+                    f.write(f'"{url}"')
+                    if i < len(urls) - 1:
+                        f.write(',\n')
+                    else:
+                        f.write('\n')
+                f.write(']')
         else:
             with open(filename, 'w') as f:
                 for item in data:
@@ -139,20 +146,23 @@ def generate_article_tweet(author, post, persona):
     
     prompt = (
         f"Craft a sharp tweet (under 230 characters) for {author_handle} with the voice of '{persona}'. "
-        f"Distill the essence of the article '{title}' and include the raw URL '{url}' at the end. "
+        f"Distill the essence of the article '{title}' into a concise, engaging message. "
+        f"Include the raw URL '{url}' at the end. "
+        f"Do not wrap the tweet in quotation marks. "
         f"Make it bold, spark curiosity, and invite engagement with a human touch. "
         f"Swap 'elevate' for dynamic terms like 'ignite' or 'unleash'. "
         f"Absolutely do not include hashtags, emojis, or phrases like '[Read more]' or 'Read more'. "
-        f"Skip any extra fluff or formatting around the URL—just append the raw URL after a space."
+        f"Skip any extra fluff or formatting around the URL—just append the raw URL after a space. "
+        f"Example: 'Love food trends? Check this out! {url}'"
     )
     
-    response = openai.chat.completions.create(
+    response = client.chat.completions.create(
         model=SUMMARY_MODEL,
         messages=[
             {"role": "system", "content": "You are a social media viral expert crafting engaging tweets."},
             {"role": "user", "content": prompt}
         ],
-        max_tokens=100,
+        max_tokens=80,
         temperature=0.7
     )
     
@@ -161,12 +171,19 @@ def generate_article_tweet(author, post, persona):
     # Post-generation check: Strip any emojis using regex
     tweet = re.sub(r'[\U0001F600-\U0001F64F\U0001F300-\U0001F5FF\U0001F680-\U0001F6FF\U0001F700-\U0001F77F\U0001F780-\U0001F7FF\U0001F800-\U0001F8FF\U0001F900-\U0001F9FF\U0001FA00-\U0001FA6F\U0001FA70-\U0001FAFF\U00002702-\U000027B0\U000024C2-\U0001F251]', '', tweet).strip()
     
-    # Optionally, strip "[Read more]" or similar phrases as an additional failsafe
+    # Strip "[Read more]" or similar phrases as an additional failsafe
     tweet = re.sub(r'\[Read more\]\(.*?\)|\bRead more\b', '', tweet).strip()
     
-    if len(tweet) > 280:
-        tweet = tweet[:277] + "..."
+    # Strip leading or trailing quotation marks
+    tweet = tweet.strip('"\'')
     
+    # Ensure tweet fits within 280 characters, accounting for URL (Twitter shortens to 23 chars)
+    url_length = 23
+    max_tweet_length = 280 - url_length - 1  # Subtract 1 for the space before URL
+    if len(tweet) > max_tweet_length:
+        tweet = tweet[:max_tweet_length-3] + "... " + url
+    
+    logging.info(f"Generated tweet: {tweet}")
     return tweet
 
 def post_tweet(author, tweet):
@@ -1015,7 +1032,15 @@ if os.path.exists(used_images_file):
 def save_used_images():
     try:
         with open(used_images_file, 'w') as f:
-            json.dump(list(used_images), f)
+            f.write('[\n')
+            urls = list(used_images)
+            for i, url in enumerate(urls):
+                f.write(f'"{url}"')
+                if i < len(urls) - 1:
+                    f.write(',\n')
+                else:
+                    f.write('\n')
+            f.write(']')
         logging.info(f"Saved {len(used_images)} used image URLs to {used_images_file}")
     except Exception as e:
         logging.warning(f"Failed to save used images to {used_images_file}: {e}")