Since I recently got my liscense, I go usually 2 times a week. Once, I went 4 days in a row. O_O I keep waiting for balloon mollies... I got to go tomorrow because I ran out of water conditioner, now that you mention it.
I try to go once a week, but usually ends up in once a fortnight, my decent LFS is around 40 mins away on a good day, its wharf aquatics btw. so not that local I suppose
I go to about 4 different ones and i try to visit one of them once a week just to see whats about, went to wharf aquatics the other week also, excellent shop, was about 25 minute drive or something though.
I usually go once a week too. I buy live food from my nearest lfs. I visit four or five others - including Wharf Aquatics - when I'm travelling about for work and am driving past (well, ok - when I'm within a few miles I make detours )