I wrote a post some time ago about whether butter should be refrigerated, triggered by my annoyance that butter taken from the fridge was so hard to spread. I linked to an article that said that butter keeps for weeks outside the fridge, something that surprised me.
Many people commented that they too kept butter outside for weeks with no ill effects and commented on the desirability of doing so and suggested various ways to set about it. On your recommendations, I got a Butter Bell in which I can keep up to one stick (1/4-lb) of butter outside and now I enjoy the pleasure of having soft, spreadable butter at any time, a true delight. When it finishes, I take out another stick from the fridge.
Thanks to all of you for the suggestions.