At a previous company, we had a Capt. who lived in Texas, he would jump on company a/c overnight to London, walk down road to crew check in, look at paperwork and then transport to a/c, usually the same a/c, and then operate to Texas, two local nights and then operate back to UK, stay in terminal and pax back to Texas and home. He would do this 3 or 4 times a month, quite the commute, nice work if you can get it!