diff --git a/banking.go b/bank.go
similarity index 100%
rename from banking.go
rename to bank.go
diff --git a/banking_test.go b/bank_test.go
similarity index 100%
rename from banking_test.go
rename to bank_test.go
diff --git a/creditcards.go b/creditcard.go
similarity index 100%
rename from creditcards.go
rename to creditcard.go
diff --git a/investments.go b/invstmt.go
similarity index 100%
rename from investments.go
rename to invstmt.go
diff --git a/securities.go b/seclist.go
similarity index 100%
rename from securities.go
rename to seclist.go