What Tools Should I Get?

Start with the Red Book. Then get a 10x loupe unless you are looking for errors and varieties then get a 12x-14x. You should get some 2x2 cardboard staple type holders and a pair of pliers to squeeze the staples flat. Agood light is also required.
John1

Velvet coin inserts, 10x loupe and a lot of numismatics' literature.
I have no idea what is a Red Book and I didn't need one for last 59 years

At some point you will want to have a scale to check the weight.

If you check out the Whitman web site you would see that they are a publishing company that produces a large variety of books on coins. One of the books on coins that they produce is called the Red Book. Actual title is The Official Red Book, A Guide Book of United States coins. Presently on the 65th Edition, was first started in 1946 with a 1947 date. It is possibly the most used coin book on USA coins in the World. There are virtually millions produced each year.
Whitman also issues Albums for coins under the names of Whitman, Harris and United States Mint.
Although you have never had one, nor used one, nor obviously never heard of that book, it still exists anyway.
And andreus7422 I almost forgot to say
As to what you need for coins, so far most already noted for a start. Then stick around here and you'll hear of thousands of other things you really, really need. Kidding of course. Maybe.

quote: " 2x2 cardboard staple type holders and a pair of pliers to squeeze the staples flat"
- better still, get a flat-clinch stapler, so you don't put pliers anywhere near your coins

quote: "I have no idea what is a Red Book and I didn't need one for last 59 years"
- it's the Seppo equivalent of Renniks or Maccas.

but you'll need a catalogue that covers whatever area you choose to collect.

a magnet: helps with forgeries.

scales,
and caliper to measure diameter.

Lol, my "dark side" collection is in the bottom shelf of my coin cabinet. It is the drawer I let my three year old daughter get into when she wants to help daddy look at coins. That way she doesn't hurt any "important" coins.

No, we don't have money, it's all just bartering system. Our currency are the tickets on Hollywood films.

I'm closing in on two months of activity in this hobby (not counting childhood). Here's a list of what I couldn't live without to date. A lot if not all of it has been mentioned but I thought it'd be fun to document it all here anyway.

Loupe - magnification! I picked up a B&L Hastings Triplet 10X
Scale (similar to what you'd see students using in a chemistry class) - always check weight for authenticity.
Magnet (the smaller/stronger, the better) - always check metal composition for authenticity if weight fails.
2X2 Cardboard Flips - quick and simple storage for the common but prized coins.
Flat Clinch Stapler - it's much easier to store the 2X2's holding coins if the staples are flat.
100W Incandescent Bulb - this is what I use to look at coins at my desk. It works for me.
Books - Red Book, ANA Grading Standards, Photograde, and Making the Grade so far.
ANA Membership - it has many benefits including a large library of books to rent.
Camera - I picked up a Canon SX130IS. Money and time are your boundaries with this one.
Lighting for Photography - I have two Jansjo's on the way.

An afterthought...most tools are invented as a solution to a problem. If you're not having any problems you won't need the solution to said problems.