Someone whos had other bethesda games on their ps3 (like fallout 3) know the correct order to install everything DLC related?

• Delete old patch first?
  
• Then install the new patch? And create a new save + quit the game?
  
• Then install dlc?
  
• Does it matter in which order you install the DLC?

What is the best way to ensure that the game will work as its supposed to?
Just preparing for when we actually have the dlc.

doesn't matter how or which ones you install because dragonborn will be aviable first then hearthfire then dawnguard the ps3 version isn't like the pc version because the pc has mods the console versions don't. but I hear that they will be 50% off the normal price for how long im not sure probly just this month. unless you just want to install certain dlc's.