Maybe I should consider deep cleaning my LP's. 20 + years of hidden grime.
I always give them a good wipe with the D4 solution before each play. I figured if I kept them stored in good sleeves and always return them to the sleeve after play that they would not get dirty. They look clean, bright, and scratch free to the naked eye.
I am cheap. Madmike's LP cleaner looks more in my budget. Besides, I like DIY.