Trading cards:
Complete the Discovery Queue (1 card daily) - https://store.steampowered.com/explore/
Crafting Badges
Install the steamDB extension to cheat the Discovery Queue (screenshot) and get your trading card immediately:
- Chrome/Edge: https://chrome.google.com/webstore/detail/steam-database/kdbmhfkmnlmbkgbabkdealhhbfhlmmon
- Firefox: https://addons.mozilla.org/en-US/firefox/addon/steam-database/
- Also possible with ASF, add this to your configuration: "AutoSteamSaleEvent": true
Chat stickers:
Voting for Steam Awards (11 stickers) - https://store.steampowered.com/steamawards
Visit any sale category and clicking the banner (1 sticker daily): https://store.steampowered.com/category/action/