A Modified version based on Python script by joaopsys that run on Google server using Google App Script to automatically enter every giveaway that you can afford on SteamGifts.com
In order to obtain your cookie, you can press CTRL+SHIFT+J while on SteamGifts.com (CTRL+SHIFT+K on Firefox) and type document.cookie. Then use the whole string (quotes included) as the argument. You only need need to do this once because AutoSteamGifts will remember your cookie (if valid).