Far From Perfect - Intermediate to advanced
Here is a bit of CSS if you feel like playing with having your tags visible. There are too many variables involved in order to publish a “one-size-fits-all” style. This should get you started if you want to develop a personal use style though.

@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document url-prefix("http://www.tumblr.com") {
#popover_tracked_tags {
  position: relative !important;
  top: 355px !important;
  left: 242px !important;
  width: 210px !important;
  display: block !important;
  visibility: visible !important;
  background-image: none !important;
  box-shadow: none !important;
  border: solid .25px rgba(36,58,80,1) !important;
}
#popover_tracked_tags > DIV {
  background: rgba(55,80,106,1) !important;
}
#popover_tracked_tags > DIV,
#popover_tracked_tags > DIV > DIV > DIV,
.popover_menu_item.ender  {
  border-color: rgba(49,71,94,1) !important;
  box-shadow: none !important;
}
.popover_menu_item.tracked_tag a .hide_overflow,
.popover_menu_item.ender a,
a[id^="tag"] small[class="count"] {
  color: rgba(255,255,255,.65) !important;
}
#popover_tracked_tags > DIV > DIV:nth-child(2) > DIV:first-child:before,
#popover_tracked_tags > DIV > DIV:nth-child(2) > DIV:first-child:after {
  display: none !important;
}
#recommended_tumblelogs {
  position: relative !important;
  top: 525px !important;
}
}
@-moz-document url-prefix("http://www.tumblr.com/dashboard") {
  #tumblr_radar {
  top: 520px !important;
}
}
@-moz-document url-prefix("http://www.tumblr.com/tagged") {
#popover_tracked_tags {
  top: 15px !important;
}
#tumblr_radar {
  top: 510px !important;
}}
@-moz-document url-prefix("http://www.tumblr.com/new"),
url-prefix("http://www.tumblr.com/blog"),
url-prefix("http://www.tumblr.com/inbox"),
url-prefix("http://www.tumblr.com/help"),
url-prefix("http://www.tumblr.com/edit") {
#popover_tracked_tags {
  visibility: hidden !important;
}}