One thing I learned a few years ago..
Bianchi, alloy, winter riding altgough not in the filthy stuff. I used a spray bottle with light detergent, spray bike, clean off with paper towel and use an airline to blast off as much excess fluid as possible. Quick, easy, used to take me 2 minutes.
Then one day I tried to adjust my gears..the barrel adjusters were siezed solid...and I mean solid. I work in engineering so equipment was no problem, but I struggled. I ended up drilling and tapping the frame bosses fpr the adjusters, quite difficult because of the angles etc.
Now, I apply antisieze to ALL my bikes from new, not having that happen again. I suspect it was the regular washing and extremely infrequent use of the barrels that caused them to sieze.