diff --git a/src/main.rs b/src/main.rs
index f41cc7b..48cdf7a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -15,7 +15,7 @@ fn main() {
     use {
         chrono::Datelike,
         itertools::Itertools,
-        prettytable::{cell, format, row, Table},
+        prettytable::{format, row, Table},
         rayon::prelude::*,
         std::{
             collections::{BTreeMap, HashSet},
@@ -80,9 +80,9 @@ fn main() {
                 match pres {
                     Ok(tl) => {
                         if tl.direction == simple_enums::TransactionDirection::Haben
-                            && tl.waehrung == simple_enums::Waehrung::EUR
+                            && tl.waehrung == simple_enums::Waehrung::Eur
                             && !tl.p_other.is_empty()
-                            && tl.p_other.find(" ZINS BIS ").is_none()
+                            && !tl.p_other.contains(" ZINS BIS ")
                         {
                             idat.push(tl)
                         } else {
@@ -165,7 +165,7 @@ fn main() {
         if !hl_only || is_hl {
             let mut yearuhj = format!("{} {}I", k.0, if k.1 { "I" } else { "" });
             let is_ny = prev_yuhj.as_ref().map(|i| i != &yearuhj);
-            v.2 += &std::iter::repeat(' ').take(pdsp - v.3).collect::<String>();
+            v.2 += &" ".repeat(pdsp - v.3);
             if is_ny.unwrap_or(false) {
                 table.add_row(row!["", "", "", ""]);
             }
diff --git a/src/simple_enums.rs b/src/simple_enums.rs
index 6c33b87..68e518c 100644
--- a/src/simple_enums.rs
+++ b/src/simple_enums.rs
@@ -29,15 +29,18 @@ use {
     std::fmt,
 };
 
-#[derive(Clone, Copy, Debug, Deserialize, Eq, Hash, Ord, PartialEq, PartialOrd, Serialize)]
+#[derive(Clone, Copy, Deserialize, Eq, Hash, Ord, PartialEq, PartialOrd, Serialize)]
 pub enum Waehrung {
-    EUR,
-    USD,
+    Eur,
+    Usd,
 }
 
 impl fmt::Display for Waehrung {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{:?}", self)
+        write!(f, "{}", match self {
+            Self::Eur => "EUR",
+            Self::Usd => "USD",
+        })
     }
 }
 
@@ -46,8 +49,8 @@ impl std::str::FromStr for Waehrung {
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         Ok(match s {
-            "EUR" => Waehrung::EUR,
-            "USD" => Waehrung::USD,
+            "EUR" => Self::Eur,
+            "USD" => Self::Usd,
             _ => return Err(parser_error::Waehrung),
         })
     }
diff --git a/src/transaction.rs b/src/transaction.rs
index fb86996..8f27532 100644
--- a/src/transaction.rs
+++ b/src/transaction.rs
@@ -5,7 +5,7 @@ use thiserror::Error;
 
 pub type TransactionValue = fixed::types::U53F11;
 
-#[derive(Clone, Debug, Deserialize, Eq, Ord, PartialEq, PartialOrd, Serialize)]
+#[derive(Clone, Deserialize, Eq, Ord, PartialEq, PartialOrd, Serialize)]
 pub struct TransactionLine {
     pub d_buchungs: NaiveDate,
     pub d_valuta: NaiveDate,