Anyone know of a really good heavy duty paper shredder that doesn't get the teeth clogged up so often? ?

we've gone through 4 or 5 so far. What we found is that you need a good crosscut shredder, AND you need to feed through smaller bunches.  This may not be ideal for a business, but for home use, it can work.  My wife saves up for a month or so, and ten sits there feeding in the stuff needing shredding a couple at a time.  Our latest, brand named "ATIVA" seems to be the best.  No problems after a good couple of years, (knock wood)