I've seen people suggest that instead of bridge mode go ahead and leave the ISP router in router mode, with wifi turned off, with your own router as the only device connected. Give your router a static IP on the ISP router's LAN and set it up on the ISP router as the DMZ.

That advantage of this is that some ISPs will try to blame your router (and your modem if you are using your own modem) for any problem you call in about no matter how obviously it is a problem on their end or with their equipment. This way it is not obvious to the tier 1 tech support people that you are using a different router.

I suppose if you want to be really thorough leave the wifi on, either with whatever the default network names the ISP router starts with or with names that don't match the ones you really use which are on your router.