Incense Burner - it's function is to purify the area you are magickally working in.  It can also be used to purify the home in a yearly magickal housecleaning.  Incense assists in achieving altered states of consciousness.  Also if people come to your home for psychic readings, you'll want to have some burning...as a matter of fact, they'll expect it.

The Cauldron - It is a symbol of the goddess.  It is a tool of transformation.  It can be used for mixing oils and brews, for divination purposes and in ritual.

It is usually made of cast iron because it conducts heat well and evenly.

Storing tools

The way you store you tools is important, for instance, you should have available wooden boxes, glass jars and ceramic containers.  Plastic is ok for the witch who travels alot, but at home using them should be avoided because air gets inside of them easily and things can leak.

Leather pouches and natural fiber pouches are excellent for the keeping of many things such as crystals and tarot cards, wrapping wands, runes and jewelry, and any other items that you want to keep protected from outside forces.  The color of the cloth should be either black or dark blue.  Something light can't filter it's way into.

Conclusion

When you shop for, make, or however you acquire your tools, it should be an adventurous and empowering time.  The process of collecting them, exchanging and gathering...even making your own strengthens your focus and abilities.  So, be creative, adventurous and most of all, enjoy yourself! 

Brightest Blessings.