Firefox Place Cleanning for performance

Use PlacesCleaner 收藏庫清潔工 :: Firefox 附加元件 directly
or execute those commands one-by-one in Tools->Error Console by your hands:

Components.classes["@mozilla.org/browser/nav-history-service;1"].getService(Components.interfaces.nsPIPlacesDatabase).DBConnection.executeSimpleSQL("DELETE FROM moz_historyvisits WHERE place_id IN (SELECT id FROM moz_places WHERE visit_count <=2 );");
Components.classes["@mozilla.org/browser/nav-history-service;1"].getService(Components.interfaces.nsPIPlacesDatabase).DBConnection.executeSimpleSQL("DELETE FROM moz_places WHERE (visit_count <=2 AND hidden <> 1 AND id NOT IN (SELECT place_id FROM moz_annos UNION SELECT fk FROM moz_bookmarks));");
Components.classes["@mozilla.org/browser/nav-history-service;1"].getService(Components.interfaces.nsPIPlacesDatabase).DBConnection.executeSimpleSQL("DELETE FROM moz_inputhistory WHERE place_id NOT IN (SELECT id FROM moz_places);");
Components.classes["@mozilla.org/browser/nav-history-service;1"].getService(Components.interfaces.nsPIPlacesDatabase).DBConnection.executeSimpleSQL("DELETE FROM moz_favicons WHERE id NOT IN (SELECT favicon_id FROM moz_places);");
Components.classes["@mozilla.org/browser/nav-history-service;1"].getService(Components.interfaces.nsPIPlacesDatabase).DBConnection.executeSimpleSQL("DELETE FROM moz_annos WHERE anno_attribute_id IN (SELECT id FROM moz_anno_attributes WHERE name = 'google-toolbar/thumbnail-score' OR name = 'google-toolbar/thumbnail');");
Components.classes["@mozilla.org/browser/nav-history-service;1"].getService(Components.interfaces.nsPIPlacesDatabase).DBConnection.executeSimpleSQL("VACUUM"); 

Ref:
檢視主題 - Firefox 3 日漸肥大的收藏庫減肥法 • Mozilla Taiwan 討論區
Vacuum Firefox databases for better performance, now with no restart 

Disable Thread SMS in Window Mobile 6.1

Under HKEY_CURRENT_USER\Software\Microsoft\Inbox\Settings\OEM\ (create if not exist),
create a new DWORD named SMSInboxThreadingDisabled and set it to 1.

ref:
Disable SMS Text Message Threading or Conversation Mode in Windows Mobile 6.1

lossless JPEG rotation

JPEG Lossless Rotato

GIMP plug-in for content-aware resize

Liquid Rescale GIMP plugin: content-aware resizing for the GIMP

It is a free, open source frontend to the Liquid Rescale Library, which provides an implementation of the Seam Carving algorithm as described in this paper by Shai Avidan and Ariel Shamir.

Using Sock Proxy for non-proxy-aware General Application

For Windows
SocksCap, ProxyCap, E-Border, Proxifier

For Linux
socksify