When texting, what exactly do you sacrifice first to make it fit?

What’s considered the most important to you, grammatically? Do you feel proper spelling is more important than that last period at the end? Will you spell before b4 and two/to/too 2, but never probably prolly? Will you spell two 2, but never to or too 2 (I feel there’s a Who’s on First joke in there…)? Would you rather shorten a long word like probably to prolly and have enough characters once, or spend a long time making be as b and and as & and have the longer words have all the numbers? Do you check to make sure it’s not in passive voice?

And, are you as totally neurotic about spelling and grammar as I am?