diff --git a/R/basiliskStart.R b/R/basiliskStart.R
index 8452df0..2792555 100644
--- a/R/basiliskStart.R
+++ b/R/basiliskStart.R
@@ -79,6 +79,15 @@
 #' \code{\link{getBasiliskFork}} and \code{\link{getBasiliskShared}}, to control various global options.
 #' 
 #' @examples
+#' ##################################################
+#' # Creating virtualenvs in a temporary directory to 
+#' # avoid polluting the user's WORKON_HOME.
+#' tmploc <- file.path(tempdir(), "basilisk")
+#' dir.create(tmploc)
+#' old <- Sys.getenv("WORKON_HOME")
+#' Sys.setenv(WORKON_HOME=tmploc)
+#' ##################################################
+#'
 #' # Loading one virtual environment into our R session:
 #' setupVirtualEnv('my_package_A', c('pandas==0.25.3',
 #'     "python-dateutil==2.8.1", "pytz==2019.3"))
@@ -110,6 +119,11 @@
 #' # Close persistent processes to avoid errors during CHECK.
 #' basiliskStop(cl, persist=FALSE)
 #' }
+#'
+#' ##################################################
+#' # Restoring the old WORKON_HOME.
+#' Sys.setenv(WORKON_HOME=old)
+#' ##################################################
 #' @export
 #' @importFrom parallel makePSOCKcluster clusterCall makeForkCluster
 #' @importFrom reticulate py_config py_available
diff --git a/R/setupVirtualEnv.R b/R/setupVirtualEnv.R
index d19f1df..5ad3fc0 100644
--- a/R/setupVirtualEnv.R
+++ b/R/setupVirtualEnv.R
@@ -42,6 +42,15 @@
 #' In such cases, the compatible versions of the core packages must again be explicitly listed in \code{packages}.
 #'
 #' @examples
+#' ##################################################
+#' # Creating virtualenvs in a temporary directory to 
+#' # avoid polluting the user's WORKON_HOME.
+#' tmploc <- file.path(tempdir(), "basilisk")
+#' dir.create(tmploc)
+#' old <- Sys.getenv("WORKON_HOME")
+#' Sys.setenv(WORKON_HOME=tmploc)
+#' ##################################################
+#' 
 #' setupVirtualEnv('my_package_A', c('pandas==0.25.3',
 #'     "python-dateutil==2.8.1", "pytz==2019.3"))
 #' useVirtualEnv("my_package_A")
@@ -51,7 +60,11 @@
 #' # No need to list versions of core packages, 
 #' # or to list them at all if they are dependencies.
 #' setupVirtualEnv('my_package_A_alt', 'pandas')
-#' 
+#'
+#' ##################################################
+#' # Restoring the old WORKON_HOME.
+#' Sys.setenv(WORKON_HOME=old)
+#' ##################################################
 #' @seealso
 #' \code{\link{listCorePackages}}, for a list of core Python packages with pinned versions.
 #'
diff --git a/R/useVirtualEnv.R b/R/useVirtualEnv.R
index 6f9fb5a..8066d40 100644
--- a/R/useVirtualEnv.R
+++ b/R/useVirtualEnv.R
@@ -25,9 +25,22 @@
 #' @author Aaron Lun
 #' 
 #' @examples
+#' ##################################################
+#' # Creating virtualenvs in a temporary directory to 
+#' # avoid polluting the user's WORKON_HOME.
+#' tmploc <- file.path(tempdir(), "basilisk")
+#' dir.create(tmploc)
+#' old <- Sys.getenv("WORKON_HOME")
+#' Sys.setenv(WORKON_HOME=tmploc)
+#' ##################################################
+#'
 #' setupVirtualEnv('my_package_A_alt', 'pandas')
 #' useVirtualEnv("my_package_A_alt")
 #' 
+#' ##################################################
+#' # Restoring the old WORKON_HOME.
+#' Sys.setenv(WORKON_HOME=old)
+#' ##################################################
 #' @seealso
 #' \code{\link{basiliskStart}}, for how these virtual environments should be used.
 #'
diff --git a/man/basiliskStart.Rd b/man/basiliskStart.Rd
index a1b38ca..958a95b 100644
--- a/man/basiliskStart.Rd
+++ b/man/basiliskStart.Rd
@@ -112,6 +112,15 @@ This mostly refers to objects that contain custom pointers to memory, e.g., file
 }
 
 \examples{
+##################################################
+# Creating virtualenvs in a temporary directory to 
+# avoid polluting the user's WORKON_HOME.
+tmploc <- file.path(tempdir(), "basilisk")
+dir.create(tmploc)
+old <- Sys.getenv("WORKON_HOME")
+Sys.setenv(WORKON_HOME=tmploc)
+##################################################
+
 # Loading one virtual environment into our R session:
 setupVirtualEnv('my_package_A', c('pandas==0.25.3',
     "python-dateutil==2.8.1", "pytz==2019.3"))
@@ -143,6 +152,11 @@ basiliskStop(cl)
 # Close persistent processes to avoid errors during CHECK.
 basiliskStop(cl, persist=FALSE)
 }
+
+##################################################
+# Restoring the old WORKON_HOME.
+Sys.setenv(WORKON_HOME=old)
+##################################################
 }
 \seealso{
 \code{\link{setupVirtualEnv}}, to set up the virtual environments.
diff --git a/man/setupVirtualEnv.Rd b/man/setupVirtualEnv.Rd
index 7002fb8..ed55224 100644
--- a/man/setupVirtualEnv.Rd
+++ b/man/setupVirtualEnv.Rd
@@ -54,6 +54,15 @@ In such cases, the compatible versions of the core packages must again be explic
 }
 
 \examples{
+##################################################
+# Creating virtualenvs in a temporary directory to 
+# avoid polluting the user's WORKON_HOME.
+tmploc <- file.path(tempdir(), "basilisk")
+dir.create(tmploc)
+old <- Sys.getenv("WORKON_HOME")
+Sys.setenv(WORKON_HOME=tmploc)
+##################################################
+
 setupVirtualEnv('my_package_A', c('pandas==0.25.3',
     "python-dateutil==2.8.1", "pytz==2019.3"))
 useVirtualEnv("my_package_A")
@@ -64,6 +73,10 @@ X$`__version__`
 # or to list them at all if they are dependencies.
 setupVirtualEnv('my_package_A_alt', 'pandas')
 
+##################################################
+# Restoring the old WORKON_HOME.
+Sys.setenv(WORKON_HOME=old)
+##################################################
 }
 \seealso{
 \code{\link{listCorePackages}}, for a list of core Python packages with pinned versions.
diff --git a/man/useVirtualEnv.Rd b/man/useVirtualEnv.Rd
index a183428..1b2d99f 100644
--- a/man/useVirtualEnv.Rd
+++ b/man/useVirtualEnv.Rd
@@ -35,9 +35,22 @@ A side-effect of \code{useVirtualEnv} with \code{dry=FALSE} is that the \code{"P
 This is a deliberate choice to avoid compromising the version guarantees if \code{\link{import}} is allowed to search other locations beyond the virtual environment.
 }
 \examples{
+##################################################
+# Creating virtualenvs in a temporary directory to 
+# avoid polluting the user's WORKON_HOME.
+tmploc <- file.path(tempdir(), "basilisk")
+dir.create(tmploc)
+old <- Sys.getenv("WORKON_HOME")
+Sys.setenv(WORKON_HOME=tmploc)
+##################################################
+
 setupVirtualEnv('my_package_A_alt', 'pandas')
 useVirtualEnv("my_package_A_alt")
 
+##################################################
+# Restoring the old WORKON_HOME.
+Sys.setenv(WORKON_HOME=old)
+##################################################
 }
 \seealso{
 \code{\link{basiliskStart}}, for how these virtual environments should be used.