When you first start scrapbooking, everything can be a little overwhelming. I remember thinking, "I don't have the tools for this!". You can start to feel like you need to buy out the crafting store every time you go, just to make a couple pages, but that's really not the case.
Even now after scrapbooking for several years, I will tell you there are 4 basic tools I use the majority of the time.
1. A really great cutter.
My tip on buying a cutter, I don't think it matters so much what brand you buy. The main thing is make sure replacement blades are easy to find. I suggest buying a pack of replacements when purchasing your cutter. If you are going to be cutting a lot of card stock your blades will go dull fast.
2. Pair of Scissors.
Now remember what your mother taught you: No running with the Scissors!
I personally love the rolling adhesive by Tombomono. Buy lots of refills of whatever you are going to use, you don't want to be in the middle of a project and run out. NEVER use a glue stick on your pictures, this will make them curl. Basicly they will be ruined. Not speaking from personal experience, but let's just say it was sad.
Well, this might not be a necessity, but it sure is fun to have! There are so many uses for it. I won't even try to name them all.