If were are talking home enviroment you should play records for yourself as you would play for your friends, in a mood were creativity flows instead of reducing it to some background noise. And nothing is better suited for that purpose than the 45. It keep you on your toes.
But as I stated somewhere else, the 45 may NOT be the best choice when, for example, having a nice time with your lady. You have to be a master in more than two ways to handle something like that...
Longplayers bores me to death (if we are not talking Jazz or classical pieces). Especially single artists albums. So if, for instance doing work at home which requires my attention, which I often do I usally just put in a mixed CD, ocassionally a very well put togheter various artist CD, or just simply tune in Irie FM. I rarely ever play LP´s. And do not collect them either.
After buying 45´s, especially brand new riddims, at my local store I usually record them, without any mixing to my MINIDISC for a first more serious listen, to sort out what was actually good and what ONLY sounded good att record store. A mean for me to getting to know the tunes.