Getting Lost in Your Own Manuscript

Natalie Bahm has a great post about the chain reaction caused by revising. Her post got me thinking about my own revising and writing, and I realized I have a problem: I get lost in my own writing. As the manuscript accumulates more words, it becomes difficult for me to differentiate between the story in my head and the one that is actually typed out. Even though I didn't formally acknowledging this problem to myself until a few days ago, I've been utilizing techniques to circumvent my little problem:

• When I sit down for a writing session I always start by reading the previous chapter or two (and of course I can't read without editing). 
• I refer to my detailed outline frequently. Back in the day, I was the writer who cringed at the word outline. Go with the flow was my motto. Now, my outline is my life line and I find myself updating it on a daily basis. Just small changes here or there, nothing drastic (usually).
• I know they say that a serious writer writes everyday, but writing everyday just isn't happening for me right now because I still work full time and am rehabbing my ACL (which is a full time job in and of itself). But, I can honestly say I write every other day. On my off writing days, I think about my book, the characters, their problems, the plots. Just thinking about things keeps the story fresh in my mind and reduces my fictional amnesia. Sometimes I will even jot down random thoughts on my off days and then refer back to them the next day. Small details like make sure Grandpa Miles puts on his reading glasses when he reads OR rework Maya's reaction to X, a teenager would react to X like this.

You may not get lost in your story, maybe it's just me. Maybe you do get lost. Either way, you have to figure out a way to get around it- outsmart yourself. I think the best solution to this problem is to of course write everyday. Any other suggestions?