I actually overheard myself use the word "irregardless" the other day, and was completely horrified. Aaaaahhh! The pod people have invaded my brain! Scrub it out with soap!

(On the other hand, at least in a lot of North American circles, the much more grammatically correct "irrespective" is likely to get you a raised eyebrow and a blank look...or a "Weeelll, aren't *we* fancypants?" expression.)

And then there's "ATM machine." Eurrrgh.

Molly