if all you need is one inch, the obvious choice is a 1" bodylift- installs in 45 min with hand tools in a parking lot, costs just $100, and will not affect vehicle safety/performance negatively at all.
However, if you're looking to get more, body lifts over 1" are not recommended as their safety in an accident is questionable to say the least. Anything over 1" requires a suspension lift.
For 2" of lift, look at Rubicon Express' Budget Boost kit, for about $250 or so, will give you a 2" suspension lift without sacrificing ride quality. Throw a 1" body lift on that for a grand total of $350 or so, and you have 3" of safe, cheap, effective lift.
98 Sahara 5.2L Magnum V8
Long Arms, 35x12.5 BFGs
My Magnum V8 Build Thread: