So, this may be bad advice, but I find that I personally sometimes really benefit from taking a couple days off of meditation every month or so.
I don't really plan to do it—it's more like I temporarily exhaust my discipline, which is easier for me to do than I'd like. And there will usually be a period of two days (not more than that) where I don't sit, and get lost in work or time-wasters instead.
I've found a couple of things consistently happen:
1. I start feeling the benefits of the practice quite strongly. I find this bizarre, but it's true. It's almost like the mind I'm cultivating needs a bit of a break from practice before it sinks in fully. The closest analogy I've thought of is that if you'd been training really hard for a marathon, your body might start to feel really good a couple of days after your last training session. I'm sure that analogy's terrible on a bunch of levels, but the experience itself has been pretty consistent for me with meditation.
2. Conversely, I start to get hit really hard with neuroses I don't usually face when I'm meditating regularly. After about two and a half days of not sitting, I'll start to "drift": I notice more and more trouble controlling my emotions (especially fear and irritation) and connecting with what I value and find beautiful in the world. It quickly gets quite terrifying, and I find it really helpful for reminding me just why I meditate.

I'd love to hear thoughts on this. I guess this isn't really advice, just something that I've noticed is helpful, and it's been consistent enough that I thought I'd share it.