As far as your records go...make sure that you get new styli (stylus)
so that old run down cartridges don't ruin your vinyl. Also, make sure
that if there is a sleeve within the record case itself, to put your
record back into that...it does help. Also, when playing out, make
sure that you are transporting your vinyl in something safe. I think
that the hard metal crates are the best. Sure, they are heavy and are a bitch to carry, but they are definitely a vinyl saver.

As far as your decks go...I cover mine whenever I'm not using them.
I have cases for them, so I just put the cover on when I'm done. I also take a paintbrush and dust out the tight spots whenever too much
dust gets in there.

Steve