I sold my power meter. I'd had it for 4 years I think. I've spent untold amounts of time learning about "training with power" and training in general.
At some point a few years ago someone asked on here about setting up some hugely complicated training regime and one of the elders responded, "Just make up a workout that sounds really hard and go do it." So that's what I'm doing these days rather than looking at power numbers.
This has freed me from the time spent looking at the data. I don't even take my garmin out anymore (strava iPhone app). and basically just track hours in the saddle. Some of my workouts are hard, some are easy.
One of the keys to this is that during the week, I ride the exact same 1.25 mi cycling-path loop every single weekday. 10 minute warmup to get there, between 40-60 minutes working out and 10 min home. So I've literally reverted to using "average speed".
I'm going to begin throwing some legitimate intervals in here in another couple weeks. I'm not going to be *too* strict with the timing. If it's 2x20 and I end up with 2x18, I won't care. As long as I feel like some midgets took baseball bats to my legs after the workout, I'll be fine.
The other parts of the workout don't require power. Spin ups, Mash downs, 1-leggeds, sprints, cooldowns, warmups, etc...
I'm just gonna see how this goes.