Here, from Life in the Realm of Fantasy via Chris the Story Reading Ape is an extremely helpful article about something that DRIVES ME NUTS.
Not whether to hyphenate, but why so many indie writers don’t use hyphens when they can be of so much help.
Connie Jasperson has pulled together a wonderful, easy-to-follow (note hyphens) guide to when and why to use hyphens in compound modifiers and expressions.
Check it out! Then get a box of hyphens to use in your own writing. They cost only a few cents at the dime store.