I have both nicer bras-like the one on the right in Angie's post, and the ones I wore for years previously-someone called them slings? Although I prefer the more expensive underwire ones, I find I wear the later much more often because they go in the wash. Honestly, I do feel better when I wear the nicer ones.
So, do you only hand wash your nicer bras? A month ago I bought the Nordstrom lingerie wash - it was mentioned in the forum during NAS - but I haven't used it yet. Which means I haven't been wearing my good bras for a month. So much easier to throw the others in the machine.
And, I have to admit, and this would be easier to solve, I only think of it when I go to get dressed in the morning. So, then, I don't think about it until the next morning. And repeat.