Re: Taking Holidays

#2
I'd imagine if you said you were taking a break and not releasing on Christmas, etc. People would understand. I would just do an authors note on the top of the chapter before the planned break to let people know 
One fish, Two fish, Red fish, Blue fish
Black fish, Blue fish, Old fish, New fish.
This one has a little car.
This one has a little star.
Say! What a lot of fish there are.
Yes. Some are red, and some are blue.
Some are old and some are new.
Some are sad, and some are glad,
And some are very, very bad.
Why are they sad and glad and bad?
I do not know, go ask your dad.

Re: Taking Holidays

#3
Yep, I take a break for 2-3 weeks pretty much every time I finish a book. Typically, I'll leave an author's note with the day I plan to come back, and I've never had any complaints. 

The only time I've seen readers complain is when authors disappear without a word, or when they promise to post a chapter but miss the deadline.