cleanup aliases, add .wgetrc, small .screenrc changes

.screenrc

@@ -1,6 +1,15 @@
 hardstatus off
 hardstatus alwayslastline
 hardstatus string '%{= kG}[ %{G}%H %{g}][%= %{= kw}%?%-Lw%?%{r}(%{W}%n*%f%t%?(%u)%?%{r})%{w}%?%+Lw%?%?%= %{g}][%{B} %m-%d %{W} %c %{g}]'
+
+# Set a large scrollback buffer
 defscrollback 100000
+
+# Set termcapinfo
 termcapinfo xterm* ti@:te@
+
+# Disable the startup message
 startup_message off
+
+# Always start `screen` with UTF-8 enabled (`screen -U`)
+defutf8 on