Meh! Very very rarely use the stuff.
I just "check" by taking a reading with the last strip from the old bottle, and one from the new bottle -- I'd have to waste one anyway with control solution, and I'd rather get two real readings that can basically tell me the same thing -- yeah, the bottle of new strips is good/bad.
Also, then I don't have that screwy control solution reading polluting my data. I hate that. A bit of an OCD thing, perhaps.
Comments? What do you all think? Am I missing something important, or is this a perfectly valid way to verify a new bottle of strips?