Purchase the catalog for 30,000 gold from Pierre's General Store. Normally you cannot obtain it until later, but you can use an exploit to get it early. The best way to use this exploit is to speak to Gus, who often says your name in conversation. Entering the codes as your name causes the items associated with the codes to be added to your inventory when a character says your name. Ensure you have an active quest to make this exploit work. You can stop time by opening your journal after casting your hook out.

This has varying uses depending on where you use it.

Your character will slowly move into the out-of-bounds area. When standing near an area you cannot get past, start swinging a weapon or tool.You must repeat this each time, but it will prevent you from blacking out. However, you can counter this by opening your journal when your character yawns. Normally, if you stay awake after 2 AM, your character will pass out, and you will wake up at home missing gold.Related: Best Tips for Stardew Valley Players