There's a new rule (guideline, suggestion, whatever) at work against starting sentences with "but." This is KILLING me. You know, when you only have 150 words in which to tell a story, sometimes you want to make a transition FAST. Say, in three letters. I was complaining to one of my editors today about this stupid rule, and he was like, eh, just write it with the buts, I'll get them out of there. I love that editor.
(If you learned you can't start sentences with "and" or "but," you learned wrong. It's one of those silly made-up grammar rules people throw around to make themselves feel superior, like the one about ending a sentence with a preposition. In some situations, starting with "and" or "but" is too casual, but it's not bad grammar.)