diff --git a/scripts/clean_modelsim.bat b/scripts/clean_modelsim.bat
new file mode 100755
index 0000000..4b5a711
--- /dev/null
+++ b/scripts/clean_modelsim.bat
@@ -0,0 +1,20 @@
+@echo off
+rem ------------------------------------------------------------------------------
+rem  clean_quartus.bat
+rem  Konstantin Pavlov, pavlovconst@gmail.com
+rem ------------------------------------------------------------------------------
+
+rem   Use this file as a boilerplate for your custom clean script
+rem   for Modelsim projects
+
+del /s /q .\transcript
+del /s /q .\wave.do
+del /s /q .\modelsim.ini
+del /s /q .\start_time.txt
+del /s /q .\vsim.wlf
+
+del /s /f /q .\work\*
+rmdir /s /q .\work\
+
+pause
+goto :eof
diff --git a/scripts/clean_quartus.bat b/scripts/clean_quartus.bat
index bdfdae9..f9f81df 100644
--- a/scripts/clean_quartus.bat
+++ b/scripts/clean_quartus.bat
@@ -7,7 +7,7 @@ rem ----------------------------------------------------------------------------
 rem   Use this file as a boilerplate for your custom clean script
 rem   for Quartus projects
 
-SET PROJ=MY_PROJECT_NAME
+SET PROJ=test
 
 rem Common junk files
 del /s /q .\%PROJ%.qws
@@ -15,6 +15,7 @@ del /s /q .\c5_pin_model_dump.txt
 del /s /q .\%PROJ%.ipregen.rpt
 del /s /f /q .\.qsys_edit\*
 rmdir /s /q .\.qsys_edit\
+del /s /q .\%PROJ%_assignment_defaults.qdf
 
 rem Compilation databases
 del /s /f /q .\db\*
@@ -25,8 +26,8 @@ del /s /f /q .\greybox_tmp\*
 rmdir /s /q .\greybox_tmp\
 
 rem Output directory
-del /s /f /q .\OUTPUT\*
-rmdir /s /q .\OUTPUT\
+del /s /f /q .\out\*
+rmdir /s /q .\out\
 
 rem Design space explorer files
 del /s /f /q .\dse\*
@@ -40,4 +41,4 @@ rem Early power estimator files
 del /s /q .\%PROJ%_early_pwr.csv
 
 pause
-exit
+goto :eof
diff --git a/scripts/clean_recursively.bat b/scripts/clean_recursively.bat
new file mode 100755
index 0000000..a65ca79
--- /dev/null
+++ b/scripts/clean_recursively.bat
@@ -0,0 +1,52 @@
+@echo off
+rem ------------------------------------------------------------------------------
+rem  clean_recursively.bat
+rem  Konstantin Pavlov, pavlovconst@gmail.com
+rem ------------------------------------------------------------------------------
+
+rem   Use this script to walk through all subdirs and execute cleaning scripts
+rem   there. Place cleaning script in every sybdir that requires cleaning.
+rem   Supported subdirectory cleaning scripts
+rem         - clean.bat            (custom one)
+rem         - clean_modelsim.bat   (special script for modelsim testbench dirs)
+rem         - clean_quartus.bat    (special script for quartus project dirs)
+
+
+echo INFO: =====================================================================
+echo INFO: clean_recursively.bat
+echo INFO: The script may sometimes take a long time to complete
+for /R %%f in (*) do (
+  echo %%f | findstr /C:".git" >nul & if ERRORLEVEL 1 (
+
+    echo %%f | findstr /C:"clean\.bat" >nul & if ERRORLEVEL 1 (
+      rem
+    ) else (
+      pushd %%~df%%~pf
+      echo %%~df%%~pf
+      @echo | call %%f
+      popd
+    )
+
+    echo %%f | findstr /C:"clean\_quartus\.bat" >nul & if ERRORLEVEL 1 (
+      rem
+    ) else (
+      pushd %%~df%%~pf
+      echo %%~df%%~pf
+      @echo | call %%f
+      popd
+    )
+
+    echo %%f | findstr /C:"clean\_modelsim\.bat" >nul & if ERRORLEVEL 1 (
+      rem
+    ) else (
+      pushd %%~df%%~pf
+      echo %%~df%%~pf
+      @echo | call %%f
+      popd
+    )
+  )
+)
+
+pause
+goto :eof
+
diff --git a/scripts/find_large_files.bat b/scripts/find_large_files.bat
new file mode 100755
index 0000000..1dfc69b
--- /dev/null
+++ b/scripts/find_large_files.bat
@@ -0,0 +1,10 @@
+@echo off
+rem ------------------------------------------------------------------------------
+rem  find_large_files.bat
+rem  Konstantin Pavlov, pavlovconst@gmail.com
+rem ------------------------------------------------------------------------------
+
+forfiles /s /c "cmd /c if @fsize GTR 1000000000 echo @path"
+ 
+pause
+exit