diff --git a/reddit/account.go b/reddit/account.go
index 92a6c0a..7595195 100644
--- a/reddit/account.go
+++ b/reddit/account.go
@@ -326,7 +326,7 @@ func (s *AccountService) Friends(ctx context.Context) ([]Relationship, *Response
 		return nil, nil, err
 	}
 
-	root := make([]rootRelationshipList, 2)
+	var root [2]rootRelationshipList
 	resp, err := s.client.Do(ctx, req, &root)
 	if err != nil {
 		return nil, resp, err
@@ -362,7 +362,7 @@ func (s *AccountService) Messaging(ctx context.Context) ([]Relationship, []Relat
 		return nil, nil, nil, err
 	}
 
-	root := make([]rootRelationshipList, 2)
+	var root [2]rootRelationshipList
 	resp, err := s.client.Do(ctx, req, &root)
 	if err != nil {
 		return nil, nil, resp, err
@@ -400,7 +400,6 @@ func (s *AccountService) AddTrusted(ctx context.Context, username string) (*Resp
 	form := url.Values{}
 	form.Set("api_type", "json")
 	form.Set("name", username)
-	// todo: you can also do this with the user id. form.Set("id", id). should we? or is this enough?
 
 	req, err := s.client.NewRequestWithForm(http.MethodPost, path, form)
 	if err != nil {
@@ -417,7 +416,6 @@ func (s *AccountService) RemoveTrusted(ctx context.Context, username string) (*R
 
 	form := url.Values{}
 	form.Set("name", username)
-	// todo: you can also do this with the user id. form.Set("id", id). should we? or is this enough?
 
 	req, err := s.client.NewRequestWithForm(http.MethodPost, path, form)
 	if err != nil {
diff --git a/reddit/comment_test.go b/reddit/comment_test.go
index cb987e0..ae1f0f3 100644
--- a/reddit/comment_test.go
+++ b/reddit/comment_test.go
@@ -32,8 +32,7 @@ var expectedCommentSubmitOrEdit = &Comment{
 	Controversiality: 0,
 
 	Created: &Timestamp{time.Date(2020, 4, 29, 0, 9, 47, 0, time.UTC)},
-	// todo: this should just be nil
-	Edited: &Timestamp{time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC)},
+	Edited:  &Timestamp{time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC)},
 
 	PostID: "t3_link1",
 }
diff --git a/reddit/reddit-options.go b/reddit/reddit-options.go
index 4986131..7ace2c3 100644
--- a/reddit/reddit-options.go
+++ b/reddit/reddit-options.go
@@ -20,28 +20,6 @@ func WithHTTPClient(httpClient *http.Client) Opt {
 	}
 }
 
-// FromEnv configures the client with values from environment variables.
-// Supported environment variables:
-// GO_REDDIT_CLIENT_ID to set the client's id.
-// GO_REDDIT_CLIENT_SECRET to set the client's secret.
-// GO_REDDIT_CLIENT_USERNAME to set the client's username.
-// GO_REDDIT_CLIENT_PASSWORD to set the client's password.
-// func FromEnv(c *Client) error {
-// 	if v := os.Getenv("GO_REDDIT_CLIENT_ID"); v != "" {
-// 		c.ID = v
-// 	}
-// 	if v := os.Getenv("GO_REDDIT_CLIENT_SECRET"); v != "" {
-// 		c.Secret = v
-// 	}
-// 	if v := os.Getenv("GO_REDDIT_CLIENT_USERNAME"); v != "" {
-// 		c.Username = v
-// 	}
-// 	if v := os.Getenv("GO_REDDIT_CLIENT_PASSWORD"); v != "" {
-// 		c.Password = v
-// 	}
-// 	return nil
-// }
-
 // WithBaseURL sets the base URL for the client to make requests to.
 func WithBaseURL(u string) Opt {
 	return func(c *Client) error {
diff --git a/reddit/reddit-options_test.go b/reddit/reddit-options_test.go
index 15ca5bf..31b0248 100644
--- a/reddit/reddit-options_test.go
+++ b/reddit/reddit-options_test.go
@@ -16,31 +16,6 @@ func TestWithHTTPClient(t *testing.T) {
 	require.NoError(t, err)
 }
 
-// func TestFromEnv(t *testing.T) {
-// 	os.Setenv("GO_REDDIT_CLIENT_ID", "id1")
-// 	defer os.Unsetenv("GO_REDDIT_CLIENT_ID")
-
-// 	os.Setenv("GO_REDDIT_CLIENT_SECRET", "secret1")
-// 	defer os.Unsetenv("GO_REDDIT_CLIENT_SECRET")
-
-// 	os.Setenv("GO_REDDIT_CLIENT_USERNAME", "username1")
-// 	defer os.Unsetenv("GO_REDDIT_CLIENT_USERNAME")
-
-// 	os.Setenv("GO_REDDIT_CLIENT_PASSWORD", "password1")
-// 	defer os.Unsetenv("GO_REDDIT_CLIENT_PASSWORD")
-
-// 	c, err := NewClient(&Credentials{}, FromEnv)
-// 	require.NoError(t, err)
-
-// 	type values struct {
-// 		id, secret, username, password string
-// 	}
-
-// 	expect := values{"id1", "secret1", "username1", "password1"}
-// 	actual := values{c.ID, c.Secret, c.Username, c.Password}
-// 	require.Equal(t, expect, actual)
-// }
-
 func TestWithBaseURL(t *testing.T) {
 	c, err := NewClient(&Credentials{}, WithBaseURL(":"))
 	urlErr, ok := err.(*url.Error)
diff --git a/reddit/reddit.go b/reddit/reddit.go
index 37eb8d7..044eb63 100644
--- a/reddit/reddit.go
+++ b/reddit/reddit.go
@@ -119,6 +119,11 @@ func NewClient(creds *Credentials, opts ...Opt) (*Client, error) {
 	}
 
 	client := newClient()
+	client.ID = creds.ID
+	client.Secret = creds.Secret
+	client.Username = creds.Username
+	client.Password = creds.Password
+
 	for _, opt := range opts {
 		if err := opt(client); err != nil {
 			return nil, err
@@ -156,11 +161,6 @@ func NewClient(creds *Credentials, opts ...Opt) (*Client, error) {
 		}
 	}
 
-	client.ID = creds.ID
-	client.Secret = creds.Secret
-	client.Username = creds.Username
-	client.Password = creds.Password
-
 	oauthTransport := oauthTransport(client)
 	client.client.Transport = oauthTransport
 
diff --git a/reddit/subreddit.go b/reddit/subreddit.go
index 70f9e79..f97e634 100644
--- a/reddit/subreddit.go
+++ b/reddit/subreddit.go
@@ -27,7 +27,6 @@ type rootSubredditNames struct {
 }
 
 // Relationship holds information about a relationship (friend/blocked).
-// todo: there's also banned, wikibanned, etc.
 type Relationship struct {
 	ID      string     `json:"rel_id,omitempty"`
 	User    string     `json:"name,omitempty"`
diff --git a/reddit/timestamp.go b/reddit/timestamp.go
index 0ee4f12..7f90cb4 100644
--- a/reddit/timestamp.go
+++ b/reddit/timestamp.go
@@ -45,8 +45,3 @@ func (t *Timestamp) UnmarshalJSON(data []byte) (err error) {
 func (t Timestamp) Equal(u Timestamp) bool {
 	return t.Time.Equal(u.Time)
 }
-
-// Before reports whether u is before t based on time.Before
-func (t Timestamp) Before(u Timestamp) bool {
-	return t.Time.Before(u.Time)
-}