Moving from NYC to Denver and I have a huge wardrobe, Halp plz

[AndrewGerard]

So I'm moving from NYC to Denver in like two weeks. I usually have a luggage piece that is HUGE and can store pretty much store for lack of a better term, a shit ton. But I left it in Denver because I didn't want to pay for an empty checked bag. Cut to me now, foolish and wanting to use it. I'm looking to fit what I can in the biggest checked bag, carry on bag, and personal bag. I got my original luggage for a steal at as goodwill, but I was wondering if there are some other hints, tips, or ticks to flying with a lot of wardrobe. The biggest thing I've seen people use are giant trashbags fillets with what I assume are clothes. Should I ship stuff for a flat rate if I can? Thanks for the help!