Lecterns allow you to OSRS gold put many spells such as Teleport to Varrock or Bones To Peaches on tablets. Those can be afterwards used or sold for gold. Since casting a variety of spells requires runes with a tablet that uses only 1 stock slots might be quite handy.
LEVEL 47. Mounted Glory - This is basically everlasting Amulet of Glory glued into the walls of your residence. Every higher level OSRS player knows how important it is to get Amulet of Glory charges and just how much it really costs to purchase those amulets over and over again. If you're money making then start from not wasting cash and becoming one of those.
LEVEL 50. Portal Chamber - This is very handy since you can put in your home teleports from various spellbooks (regular, Lunar and Ancient) and have all of them in 1 place. As you're going to have so many useful portals in your home all you have to carry with you'll likely be House Teleport Tablet.
LEVEL 55. Armour Stand - Contrary to its name suggests Armour Stands are not utilized just as a decoration. This is a location where it is possible to mend your Barrows gear so it's a necessity to buy RuneScape gold have one if you are utilizing Barrows sets.