sanitizer question

[The BJB]

I would like to bottle (into 12oz. bottles) some premixed sanitizer to keep in the basement brew corner so this way when I need to take a gravity reading or anything like that I can just open up one or two bottles without having to mix up a new batch of sanitizer.

Does this sound alright, do you think that it would hold up to it's sanitizing properties well enough?

[jawbox]

I usually mix up a gal extra of star San with distilled water, plus I keep a spray botlle full with the same mixture that I use to spray keg posts, hydrometers etc.

Star San mixed with distilled water remains active for a long time. There's a podcast with the five star chemicals guy over at the brewing network.