Depends on whether you want to get sacked, or made redundant with benefits.  If you want to get sacked, anything from being useless to damaging company assets, assault, chronic bullying or something else suitably offensive should probably do the trick, depending on employer and what sort of reference/criminal record you might want.

If it's full-on redundancy you're after, that's harder.  Either wait for your company to go under, or if that's not likely, probably identify someone highly efficient and popular with management, and try to slowly move your role until it exactly duplicates what they are doing.  Even this strategy may not work if your company is inefficient at identifying wasted resources or shy about shedding employees.  Either way has risks - seeking the sack has risks to your CV, seeking redundancy is the long game and has considerable risks to your sanity!

Just back from the US - per our discussions you'll be interested to know that nobody is shopping over there, quite an astonishing marked difference in the 12 months since I was last here.  I mean, consumer spending in Ireland has crashed with companies going bust left right and centre, but California right now makes Dublin look like an orgy of consumption!  Don't know what pHile's take on it is, but things looked very very different in 12 months in LA.

cheers,

dave