Moving furniture around because you don't have a 3m x 3m space free all the time is tiring and a major pain point for me (I own a vive, I don't re-setup everytime though I do change the boundaries & optimal furniture placement sometimes)
You don't actually need 3m x 3m for many experiences/games. I work in much less space and only bother clearing space when I need it.
The trick is to leave it set up ;-)
But is it really that hard? I use a Rift in a hot-desking office and setting it up takes all of 30 seconds each time I move. The room setup doesn't need to be redone. I don't bother with the guardian boundary for front-facing cameras. I just plug in the USB+HDMI and I'm done.