How do you deal with a case of the Bleh???

Only a short post today in anticipation of the kick-off of my Fourth Writers' Platform-Building Campaign next Monday, yay! Make sure you all come back then and sign up, so you don't miss out on joining. Instructions will be in my post next Monday.

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I've been struck down with a bad case of the Bleh over the last few weeks. You all know the symptoms I'm sure: general lethargy, inability to write much, the beloved manuscript you've worked on for months (years?) looks like it has a bad case of Spotty Needsmorerevision-itis and you simply don't know where to start, shiny new ideas start creeping around the house and whispering to you that you should drop everything and work on them, emails get backed up because you haven't responded, you're behind on visiting all the places your friends hang out on the interweb, etc etc etc.

Hmm.

Do you all have these days as well? What do you do when (if?) you get like this? Is there a magic potion I can take to cure myself, or do I just have to keep pushing through? Can't wait to hear your thoughts.