diff --git a/README b/README
index 515b94b..03883f6 100644
--- a/README
+++ b/README
@@ -1,8 +1,4 @@
 TODO:
-    * make save button create a comparison set to use
-        (also consider how to clean / re-create db initial values from code -- easily could just drop/recreate per table, and only drop finance, not csets)
-    * then delete export button
-
 
 CONSIDER in code:
     * when we time the payment of GMHBA / HCF (and at what cadence) and include it in calcs better
diff --git a/db.py b/db.py
index 51ec6dd..7802f47 100644
--- a/db.py
+++ b/db.py
@@ -149,6 +149,7 @@ def update_finance(data):
 
 
 def insert_cset( data ):
+    print( f"Saving: {data['vars']['name']}" )
     conn = connect_db(False)
     cur = conn.cursor()
     cur.execute('''INSERT INTO comparison_set (
diff --git a/main.py b/main.py
index 99ddceb..0656ccb 100644
--- a/main.py
+++ b/main.py
@@ -1,7 +1,7 @@
 # main.py
-from flask import Flask, render_template, request, redirect, url_for, Response
+from flask import Flask, render_template, request, redirect, url_for, Response, jsonify
 from calc import calculate_savings_depletion
-from db import init_db, get_finance_data, update_finance, get_budget_data, get_comp_set_data, get_comp_set_options
+from db import init_db, get_finance_data, update_finance, get_budget_data, insert_cset, get_comp_set_data, get_comp_set_options
 from collections import defaultdict
 from datetime import datetime
 import csv
@@ -10,6 +10,9 @@ from disp import FP_VAR
 
 app = Flask(__name__)
 
+# core vars that we will save for comparisons
+VARS= ( 'D_Salary', 'D_Num_fortnights_pay', 'School_Fees', 'Car_loan_via_pay', 'Car_loan', 'Car_balloon', 'Living_Expenses', 'Savings', 'Interest_Rate', 'Inflation', 'Mich_present', 'Overseas_trip', 'Mark_reno', 'D_leave_owed_in_days', 'D_TLS_shares', 'M_TLS_shares', 'D_CBA_shares', 'TLS_price', 'CBA_price', 'Overseas_trip_date', 'Mark_reno_date', 'Sell_shares', 'CBA', 'TLS' )
+
 # Initialize the database
 init_db()
 
@@ -74,8 +77,7 @@ def index():
 
 @app.route('/save', methods=['POST'])
 def save():
-    for el in request.form:
-        print(f"SAVE: {el}={request.form[el]}")
+    insert_cset( request.get_json() )
     return "200"
 
 @app.route('/update', methods=['POST'])
diff --git a/templates/index.html b/templates/index.html
index 14348e0..a010063 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -284,7 +284,8 @@
                     $.ajax( { 
                         type: 'POST', 
                         url: '/save', 
-                        data: { 'vars': vars, 'savings_data' :savingsData }, 
+                        contentType: 'application/json',
+                        data: JSON.stringify( { 'vars': vars, 'savings_data' :savingsData } ),  
                         success: function() {  $('#save_modal').modal('hide'); } } )"
                 >Save</button>
           </div>