I forgot to bring my remote with me, so I have no way to use my iPod or the online Roku remote unless I can connect my Roku to WiFi which I can't do without my remote...any ideas? Like using Bluetooth somehow? I have a Roku 2 XS.
You're probably out of luck (sorry). The only bluetooth device known to work with Roku is their gaming remote. It might not be practical, but if you're near any local big box stores like Best Buy or Walmart, you could maybe pick up a harmony, which will have the Roku codes available(you'll need a computer to program, so that might not work for you). Most cheap universal remotes won't have the right codeset for Roku, and learning remotes won't help in this case. You could always return the remote after you get it set up on wifi, and use the iphone remote for the rest of your trip.
If anyone knows of an inexpensive universal that's commonly carried by the big box stores, that has the Roku codes out-of-the-box, I (and the OP, I'm sure) would love to know!