How do you maintain your Roomba?

[kgizo]

Recently there was a great thread about whether or not to get a Roomba. I've had mine awhile now and have gone through the extra filters and brushes that came with it. I looked on the Roomba site and the replacements are pricey.
How often do you replace your Roomba accessories? Do you get them from Roomba or have you found a discount option?

 

[Asscherhalo_lover]

I buy them on amazon and I replace them when they look gross. Usually every 60 days or so for the air filters and the sweeper arm, less often for the rollers. I have the 770 I think.

 

[HopeDream]

I have an older roomba (511) that I don't use that much any more.

Every few months I usually wash the filters under warm running water with dish soap, rinse well, and then let them dry. The replacement filters are way expensive, and It's not like they're HEPA grade or anything.

You can also just replace the filter material: http://www.instructables.com/id/DIY-Roomba-filters/