I joined less than two weeks ago, so I've had a few LDs now, but I'm still a beginner...

The first night I was able to induce LDs, it was hot in my room and so I slept on the sofa in my living room instead. I had 4 lucids that night! When I posted about it, a few people commented that people tend not to sleep as deeply on the couch, perhaps making my lucid dreams come more easily. I've had a couple more during nap time on the sofa as well. So, that's pretty unscientific, but it worked for me! (Obviously, I was using *other* techniques as well, I just think this might have facilitated the dreams.)