I'm out of Cave Mode and back to the normal ebb and flow of things.
For the curious, when I'm in cave mode:
I decline most invitations to review manuscripts (unless I'm on the journal's Editorial Board)
I decline nearly all invitations to write for edited books, encyclopedias, newsletters, blogs, book reviews, and the like
I rarely travel for talks and workshops
I'm less likely to review grant proposals, book proposals, and P&T dossiers
I'm much slower than usual to get back to e-mail
Please don't be offended if I'm slow to get back to you or if I decline something I would otherwise agree to do.
As for being slow with e-mail, we all should read and ponder Melissa Febos's classic essay "Do You Want to be Known for Your Writing, or For Your Swift Email Responses?"