diff --git a/requirements.txt b/requirements.txt
index 99615f2..7030a2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,3 +66,4 @@ Operations to be functional
    - Record Petty Cash to refund.
  X - Write Off Bad Debt
  X - Perform a Deposit and Close the Books
+   - Determine Rents Collected for a given period.
diff --git a/todo.notes b/todo.notes
index 83d021d..bb62b38 100644
--- a/todo.notes
+++ b/todo.notes
@@ -20,8 +20,8 @@ Get Petty Cash working.  We'll need to add one or more expense
 accounts.  We'll also need to implement purchase order
 functionality, or at least simple an expense page.
 
-Figure out how to utilize the security deposit, whether
-as part of move-out only, or as one of the payment options.
+Reconcile all entries of a ledger to the c/f entry when
+"closing" the ledger and creating a new one.
 
 Automatic assessment of rents, or at least for now, one
 click manual mechanism to assess rents correctly for all
@@ -111,3 +111,6 @@ for $16.33.
   -- My rework eliminated that field, and everything was getting
   -- grouped by transaction.
 
+Figure out how to utilize the security deposit, whether
+as part of move-out only, or as one of the payment options.
+