If you're able you can afford it, employ a Butler or Demon butler to RuneScape gold speed up the amount of time required for bringing in materials. Other requirements include 60 Magic skill level and the 67 level of construction skill. Once you've got all the supplies, change the address of your Home in Rimmington and then make a trip to Phials yourself to remove the tablets (by using them on him by selecting third dialogue) or send your Butler.
Wintertodt encounter is an excellent opportunity to earn some gold since it's a mini-game that offers amount of dropped items related to points earned in boss battle. You'll require specific pieces of equipment and the right skills to make maximum benefit from it.
First of all , firemaking to level 50 (the higher the number, the better), any other abilities are not required, but the knowledge gained from various tasks carried out during minigame (those activities are related to Herblore, Woodcutting, Fletching and construction skills) scales positively with level of skill. So it's a good opportunity to progress in particular field of cheap OSRS gold expertise.