I know some of the viewers reading this post will cringe when they read this but, keep in mind that I am working on <$10US watches from thrift stores that do not run now. So... a watch that will run for 6 ~12 months before needing to be cleaned again is just fine at time.
As stated, I am a noob at watch repair/cleaning. I have read a few places about watch cleaning solutions (L&R, etc.) that I should use. The problem is, I am on a budget and I want to spend the right money at the right time. By that I mean I am spending my money on basic tools (screw drivers, etc.) and not $40EU/$50US per liter for watch cleaner and the same again on watch rinse. With that being said, I am seeking help - What chemicals can I get locally (Walmart, Target, Home Depot, etc.) that will work for cleaning watch parts?
Can I use Isopropyl 70% Alcohol?
Can I use peroxide 3%?
Can I use Easy-Off oven cleaner?
Can I use paint thinner?
Can I use concentrated Ammonia (via dilution ratio)?
Can I use CLR - Calcium, Lime, Rust remover (US based product)?
Can I use lighter fluid?
Can I use carburetor clearer - what type?
Is there something else that will work that don't know about? Also I found a simple ultrasonic jewelry cleaner for $7 (which I think will be useful)