diff --git a/AdventOfCode2020.Tests/Day01_Tests.cs b/AdventOfCode2020.Tests/Day01_Tests.cs
index 0e0dd0c..3b2f34f 100644
--- a/AdventOfCode2020.Tests/Day01_Tests.cs
+++ b/AdventOfCode2020.Tests/Day01_Tests.cs
@@ -10,9 +10,9 @@ namespace AdventOfCode2020.Tests
         [TestMethod()]
         public void ResolvePart1__Example()
         {
-            Day01 day01 = new Day01();
+            var day = new Day01();
 
-            string result = day01.ResolvePart1(new string[] {
+            string result = day.ResolvePart1(new string[] {
                 "1721",
                 "979",
                 "366",
@@ -31,9 +31,9 @@ namespace AdventOfCode2020.Tests
         [TestMethod()]
         public void ResolvePart2__Example()
         {
-            Day01 day01 = new Day01();
+            var day = new Day01();
 
-            string result = day01.ResolvePart2(new string[] {
+            string result = day.ResolvePart2(new string[] {
                 "1721",
                 "979",
                 "366",
diff --git a/AdventOfCode2020.Tests/Day02_Tests.cs b/AdventOfCode2020.Tests/Day02_Tests.cs
index 01409ca..2b98fc7 100644
--- a/AdventOfCode2020.Tests/Day02_Tests.cs
+++ b/AdventOfCode2020.Tests/Day02_Tests.cs
@@ -10,9 +10,9 @@ namespace AdventOfCode2020.Tests
         [TestMethod()]
         public void ResolvePart1__Example()
         {
-            IDay day02 = new Day02();
+            var day = new Day02();
 
-            string result = day02.ResolvePart1(new string[] {
+            string result = day.ResolvePart1(new string[] {
                 "1-3 a: abcde",
                 "1-3 b: cdefg",
                 "2-9 c: ccccccccc",
@@ -28,9 +28,9 @@ namespace AdventOfCode2020.Tests
         [TestMethod()]
         public void ResolvePart2__Example()
         {
-            IDay day02 = new Day02();
+            var day = new Day02();
 
-            string result = day02.ResolvePart2(new string[] {
+            string result = day.ResolvePart2(new string[] {
                 "1-3 a: abcde",
                 "1-3 b: cdefg",
                 "2-9 c: ccccccccc",
diff --git a/AdventOfCode2020.Tests/Day03_Tests.cs b/AdventOfCode2020.Tests/Day03_Tests.cs
index 3d35e38..d23933a 100644
--- a/AdventOfCode2020.Tests/Day03_Tests.cs
+++ b/AdventOfCode2020.Tests/Day03_Tests.cs
@@ -1,5 +1,4 @@
-using AdventOfCode2020;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
 
 namespace AdventOfCode2020.Tests
 {
@@ -9,9 +8,9 @@ namespace AdventOfCode2020.Tests
         [TestMethod()]
         public void ResolvePart1__Example()
         {
-            IDay day03 = new Day03();
+            var day = new Day03();
 
-            string result = day03.ResolvePart1(new string[] {
+            string result = day.ResolvePart1(new string[] {
                 "..##.......",
                 "#...#...#..",
                 ".#....#..#.",
@@ -31,9 +30,9 @@ namespace AdventOfCode2020.Tests
         [TestMethod()]
         public void ResolvePart2__Example()
         {
-            IDay day03 = new Day03();
+            var day = new Day03();
 
-            string result = day03.ResolvePart2(new string[] {
+            string result = day.ResolvePart2(new string[] {
                 "..##.......",
                 "#...#...#..",
                 ".#....#..#.",