If you're getting ready to rent, don't do what this editor did once ... a long, long time ago. Don't walk into the unit -- particularly if it's not the same unit you're getting ("It's pretty similar," you'll be assured, but don't listen) -- nod, and let that affordable rent lure you into blurting out, "I'll take it!" (That exclamation is often fueled by that familiar lust for freedom that new twentysomething college graduates experience. The fear of another year under Mom's and Dad's roof is a.