Return to WoW - Warlords of Draenor - what to do with old items/pots/tokens? [closed]

So after several years, I decided to get back to World of Warcraft with the 6.2 WoD release.

I found my bank and bags are filled with Orgrimmar items, tokens, badges and whole kind of items that aren't effective anymore. Should I simply delete all of them?

Any items worth keeping?

Tokens I refer to are the ones that increase reputation with factions mainly.