Here is a list of the particularly useful debug settings of Second Life Viewer (I use firestorm, settings may not be available in all viewers)

• AvatarBakedLocalTextureUpdateTimeout

Specifies the maximum time in seconds to wait before updating your appearance during appearance mode.

Mine: 5

• AvatarBakedTextureUploadTimeout

Specifies the maximum time in seconds to wait before sending your baked textures for avatar appearance. Set 0 to disable and wait until all baked textures are at highest resolution.

Mine: 20

• FilterItemsPerFrame

Maximum number of inventory items to match against search filter every frame (lower to increase frame rate while searching, higher to improve search speed.

Mine: 1000

• FirestormTagColor

The tag color you wish to have

(It’s more precise than the menu)

• FSLeaveMouselookOnFocus

Exit mouselook when regaining focus

(Should help you taking pictures with an alt )

• HeightUnits

Determines which metric units are used: 1(TRUE) for meter and 0(FALSE) for foot.

• HighResSnapshot

Double resolution of snapshot from current window resolution

Mine: True

• ImagePipelineUseHTTPFetchMaxRequests

Max number of simultaneous textures to request when using HTTP texture fetch. Changing this setting above 8 will most likely cause texture loading problems, setting above 32 *WILL* cause loading failures.

(Helps rezzing)

Mine: 21

• xferThrottle

Maximum allowable downstream bandwidth for asset transfers (bits per second)

(Helps rezzing)

Mine: 990000.125

More coming soon…