Anytime you want to use "any", aren't there any rules?

Last night in class, a student was wondering if there were any rules for "any" and singular and plural nouns.

When the meaning is that "anything is OK", we usually use a singular noun after "any".

• You can take any one you like.
• Any place you would like to meet would be fine.
• You shouldn't accept just any teacher.

When any is used with "not", we usually use a plural or uncountable noun after "any".

• She didn't have any other questions.
• We couldn't find any restaurants that looked delicious.
• There wasn't any space left in the bag.

If you have any other questions, you can ask me anytime.