This is a big one. The worst thing that can happen for your sales is the CDs or Vinyl show up at your doorstep and you are just sitting there holding them with no plan on how to get them out to the public. Talk to music stores, get bids online, something.
Just don’t be stuck with 10 boxes of CDs in your garage as you wait for them to sell. Get those works of gold of to distributors so that they can be in-stock on store shelves and making you money.