Frugal ways to web surf

[cast-fish]

Hello there,

Please could you tell me the most "data efficient" way to web surf?

Currently i have seen some clever tricks on win32 such as "fastun" and

"slimbrowse" which lower your data usage over cell networks and mobile web
browsing.

Those would work on a TCL browser right?  (say links text browser through those
data saving things like "slimbrowse"

What's the most "data efficient" image file format please?  (typically existing on the world wide web?)


many thanks


V