How to downgrade iPhone with SHSH blobs - any version tutorial

This is a tutorial for those who want to downgrade their iPhone from the current version to a previous one:

Downgrade iOS 6 Beta 1 To iOS 5.1.1

• How To: Downgrade iOS 6 Beta 1 To iOS 5.1.1 For Untethered Jailbreak On iPhone, iPod Touch, iPad

Downgrade iOS 5.1 To iOS 5.0.1/5.0

• How To: Downgrade iOS 5.1 To iOS 5.0.1/5.0 On iPhone 4/3GS, iPad 1G, iPod Touch 4G/3G

Downgrade iOS 5.1 To iOS 4.3.5/iOS 4.3.3/iOS 4.x

• How To: Downgrade iOS 5.1 To iOS 4.3.5/4.3.3/4.x On iPhone 4/3GS, iPad 2G/1G, iPod Touch 4G/3G

Downgrade iOS 5.0.1 To iOS 5.0

• How To: Downgrade From iOS 5.0.1 To The iOS 5.0 Firmware Using iFaith v1.4

Downgrade iOS 5 Beta 1, 2 , 3, 4, 5, 6 or 7 To iOS 4.3.5 Without Saved SHSH Blobs

• How To: Downgrade From iOS 5 Beta 1, 2 , 3, 4, 5, 6 or 7 To iOS 4.3.5 Without Saved SHSH Blobs

Downgrade iOS 5 Beta 1, 2 , 3, 4, 5, 6 or 7 To iOS 4.3.3

• How To: Downgrade From iOS 5 Beta 1, 2 , 3, 4, 5, 6 or 7 To iOS 4.3.3

Downgrade iOS 5 to iOS 4.3.3

• How To: Downgrade Using TinyUmbrella (generalized)

Downgrade iOS 4.3.5 to iOS 4.3.3

• How To: Downgrade From iOS 4.3.5 To iOS 4.3.3

Downgrade iOS 4.3.4 to iOS 4.3.3

• How To: Downgrade From iOS 4.3.4 To iOS 4.3.3

Downgrade iOS 4.3.3 to iOS 4.3.2

• How To: Downgrade Using TinyUmbrella (generalized)

Downgrade iOS 4.3.3 to iOS 4.3.1

• How To: Downgrade Using TinyUmbrella (generalized)

Downgrade iOS 4.3.3 to iOS 4.3.0

• How To: Downgrade Using TinyUmbrella (generalized)

Downgrade iOS 4.3.3 to iOS 4.1

• How To: Downgrade Using TinyUmbrella (generalized)

Downgrade iOS 4.0.2 to iOS 4.0.1

• How To: Downgrade iPhone 4 iOS 4.0.2 – 4.0.1 Using SHSH Blobs

Downgrade iOS 4.0 to iOS 3.1.3

• How To: Downgrade iPod Touch or iPhone from iOS4 to 3.1.3 firmware

Downgrade iOS 3.1.3 to iOS 3.1.2

• How To: Downgrade iPod Touch or iPhone back to 3.1.2 Firmware