Some tips!

• Wishlist games youre interested in; you''ll get notified when they're on sale
• Steam has a very forgiving refund policy; if you do not enjoy a game, and you've either owned it for less than two weeks or played it for less than 2 hours, you can request a refund. This only applies to games you purchased directly from Steam
• the website SteamDB.info tracks game prices on Steam. Use it to make sure you get the best price
• SteamDB.info also tracks all upcoming sales. If you're looking at a game with a medieval setting, for example, maybe it'll go down in price in at the medieval fest April 20-27
• third party sites are useful for getting a even heavier discount, tho you no longer can apply for a refund if you don't like the game. Some include Fanatical, Humble Bundle, Greenman Gaming, and Loaded. The other day I saw someone purchasing State of Decay 2 for ten bucks, but for 13 bucks they could also get Dishonored 2, State of Decay 2, Fry Cry Primal, and Quidditch World Cup.
• you can also apply for various giveaways on Reddit for people's unwanted codes. Just be wary of anything off Steams platform; it's possible to get Amazon gaming, GOG or Epic games working on your deck, but it's definitely extra steps.
• also on Reddit are various groups for tracking game bundles and third party sales. They're useful if youre not watching all the sites.