You asked this question just for me!
Ok, I keep a fairly well stocked cabinet. But, I'll pare it down for beginners.
Frankincense, Myrrh, Dragon's blood
Rosemary, Cedar and/or Sandalwood, Jasmine, Lavender, Chamomile, Tarragon, Cinnamon, Clove, Vervain, Allspice, Turmeric, Garlic.
black/purple, red white, yellow. and blue.
Ribbons or Cords:
white, red, and black gold and purple.
I also keep base oils on hand, such as olive, coconut and jojoba oils.
You can use grape seed or castor oil. Mineral oil is a thing of last resort.
I also keep a creamer, a goblet, a crystal bowl for floating candles, candle holders, fire proof plates, several ceramic tiles, incense burners for sticks and a charcoal burner. A cauldron. A scribing tool. A long necked lighter. A candle snuffer. Squares of fabric in minimally white, black, and red for altar cloths.
Athame. Wand. Dip pens, parchment, and India ink.