My log book only has one XC column and I only log as XC those flights that are to airfields over 50nm away. Then again, at least 95% of my flights fall into that category.
Really, unless you are going for a rating or a 135 gig, does XC time actually matter?
Here is a question that just popped into my head. If a Naval Aviator takes off from a carrier, and that carrier sails 50nm before that Aviator returns (without landing someplace else), is that considered cross country?