diff --git a/README.md b/README.md
index f9faaf4..4025a19 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # Twitter timeline cleaner
-Clean your Twitter timeline
+## Clean your Twitter timeline
 
+## Prerequisites
 Before running, remember to set these environment variables: 
 
 ```
@@ -13,6 +14,21 @@ export TWITTER_NAME='@your_twitter_name'
 
 and follow the instructions to claim a [Twitter developers account](https://developer.twitter.com/en/apply) and [to create an app](https://developer.twitter.com/en/apps/create), needed to fetch your Twitter timeline's tokens and keys.
 
+## Usage
+
+```
+usage: twitter-timeline-cleaner.py [-h] --until UNTIL_DATE [--dry-run] [--save] [--limit LIMIT]
+
+Maintain clean your Twitter timeline
+
+optional arguments:
+  -h, --help          show this help message and exit
+  --until UNTIL_DATE  delete tweets until this date (YYYY-MM-DD)
+  --dry-run           simulate (don't delete anything)
+  --save              save deleted tweets in JSON
+  --limit LIMIT       define how many tweets to delete (default: all)
+```
+
 Article in italian talking about this project: [Ripulire la propria Twitter timeline](https://www.zerozone.it/tecnologia-privacy-e-sicurezza/ripulire-la-propria-twitter-timeline/19195)
 
 Work inspired by [delete-tweets](https://github.com/koenrh/delete-tweets) by Koen Rouwhorst
diff --git a/twitter-timeline-cleaner.py b/twitter-timeline-cleaner.py
index 4518078..7f07ab8 100644
--- a/twitter-timeline-cleaner.py
+++ b/twitter-timeline-cleaner.py
@@ -1,11 +1,18 @@
 #!/usr/bin/env python3
 #
-### Twitter timeline cleaner ###
+# Twitter timeline cleaner
+# v0.0.2
 #
 # by Michele <o-zone@zerozone.it> Pinassi
 # 
-# https://www.zerozone.it/tecnologia-privacy-e-sicurezza/ripulire-la-propria-twitter-timeline/19195
+# Released under GPL v3
 #
+# More @ https://www.zerozone.it/tecnologia-privacy-e-sicurezza/ripulire-la-propria-twitter-timeline/19195
+#
+# v0.0.2 - 25.07.2021
+# - added "save" and "limit" options
+#
+
 from __future__ import print_function
 
 import os
@@ -13,7 +20,7 @@ import json
 import sys
 import argparse
 
-from datetime import datetime
+from datetime import datetime, date
 from dateutil import parser
 
 import twitter
@@ -40,8 +47,10 @@ def get_tweets(api=None, screen_name=None):
 
 def main():
     argparser = argparse.ArgumentParser(description="Maintain clean your Twitter timeline")
-    argparser.add_argument("--until", dest="until_date", required=True, help="Delete tweets until this date (YYYY-MM-DD)")
-    argparser.add_argument("--dry-run", dest="dry_run", action="store_true", default=False)
+    argparser.add_argument("--until", dest="until_date", required=True, help="delete tweets until this date (YYYY-MM-DD)")
+    argparser.add_argument("--dry-run", dest="dry_run", action="store_true", default=False help="simulate (don't delete anything)")
+    argparser.add_argument("--save", dest="save", action="store_true", default=False, help="Save deleted tweets in JSON")
+    argparser.add_argument("--limit", dest="limit", default=False, help="define how many tweets to delete (default: all)")
 
     args = argparser.parse_args()
 
@@ -53,29 +62,62 @@ def main():
         sys.stderr.write("Twitter API credentials not set.\n")
         exit(1)
 
+    print("[#] Connection to Twitter API...")
+
     api = twitter.Api(consumer_key=os.environ["TWITTER_CONSUMER_KEY"],consumer_secret=os.environ["TWITTER_CONSUMER_SECRET"],access_token_key=os.environ["TWITTER_ACCESS_TOKEN"],access_token_secret=os.environ["TWITTER_ACCESS_TOKEN_SECRET"],sleep_on_rate_limit=True)
 
+    try:
+        api.VerifyCredentials()
+    except twitter.TwitterError as err:
+        print("[!] API error: %s. Please verify credentials and try again!"%err.message)
+        exit(1)
+
     until_date = datetime.min if args.until_date is None else parser.parse(args.until_date, ignoretz=True)
 
-    timeline = get_tweets(api=api, screen_name=os.environ["TWITTER_NAME"])
+    if args.save:
+        now = datetime.now()
+        filename='tweets_%s.json'%(now.strftime('%Y%b%d'))
+        json_file = open(filename, 'w')
+        print("[#] Saving deleted tweets to %s"%filename)
+
+    print("[#] Fetch tweets for %s..."%os.environ["TWITTER_NAME"])
+
+    try:
+        timeline = get_tweets(api=api, screen_name=os.environ["TWITTER_NAME"])
+    except twitter.TwitterError as err:
+        print("Exception: %s\n" % err.message)
+        exit(1)
+
+    tweet_count=0
 
     for tweet in timeline:
-
-        print(tweet._json)
-
         tweet_date = parser.parse(tweet._json["created_at"], ignoretz=True)
         tweet_id = tweet._json['id']
 
         if tweet_date >= until_date:
            continue
 
+        tweet_count+=1
+        if args.limit and tweet_count > args.limit:
+            break
+
+        print(tweet._json)
+
+        if args.save:
+            print("[#] Save tweet ID %d to file..."%tweet_id)
+            json.dump(tweet._json,json_file)
+
         try:
-            print("delete tweet %s" % tweet_id)
+            print("[!] Delete tweet %s" % tweet_id)
             if not args.dry_run:
                 api.DestroyStatus(tweet_id)
         except twitter.TwitterError as err:
             print("Exception: %s\n" % err.message)
 
+    print("[#] DONE! Deleted %d tweet(s) from yout timeline"%tweet_count)
+
+    if args.save:
+        json_file.close()
 
 if __name__ == "__main__":
     main()