First of all, you are one of the lucky ones if you have some spare time. :)
I'm a scrapper. Like a true scrapper. Everything in my life goes down in a book. I have 2 children and it's hard to find time to do anything much less scrap but if you look at it in the perspective that you're creating an heirloom, something that you'll show your family and pass on to show where your roots are, then it can become more than a project---but a new way to see your life. I don't sell anything, so my advice it totally from experience and starting out just where you are. The good thing about scrapbooking is that if you decide you don't like it, you have the tools to go right into hundreds of other projects or hobbies because scrapping tools are extremely versatile. If you buy quality tools, you'll have them on hand for quite a long time too...so it's worth the investment to buy quality. Start by visiting scrapbooking stores or your local craft store. DON'T BUY ANYTHING, just make a list of things that you'd like to learn more about or what catches your eye first. If you're doing this to fill in spare time, even better!!! Not only are you learning your craft, but you have the chance to get out and possibly meet others who scrap as well (some of my closest friends are ones I've met at crops!). Once you have an idea of what scrapbooking is to you, you can build up the knowledge of what tools will suit you better because scrapbooking is one of those hobbies where you can really overspend. Some scrapbooking stores will have crop rooms where you can use cutters and punches and die cutters for free. Some will charge a small fee, but in respect to what you'd spend buying all the tools, you'll save money AND you won't have the huge problems with scrapbooking storage (which becomes a hard task once you start to get into it, it's addictive so you'll buy everything!). Get comfortable with knowing the different tools and decide if it's just something to do for fun, or if you want to really learn about the craft. True scrapbooking is saving things for a lifetime so the first thing to understand is about making your pages archeival safe. That just means that they're made with products that won't tarnish or turn yellow or crack over time. If you want to do it as an heirloom, then use acid/lignon free papers. Same thing with your glues. And...that's it! Once you have done your research then begin with the most important thing...finding your voice. What's your style. Are you romantic? Are you funny with lots of color? Do you like flowery motiffs??? Are you a black and white kind of person? This is what will determine the papers you purchase. Really though you'll want to decide just what it is you're scrapping...if you're doing pictures of children, you'll want primary colors...pictures of babies are pastels...nature pictures can be vibrant, or neutral...you get the point. Buy papers you know you will use, not just buy "in case" you'll use them. Next? Your paper cutter. This is tricky because there are so many different kinds. Some you have to replace blades all the time and others they may be harder to use. Next you'll want to find an adhesive. Glue sticks are great! There are also things called Glue dots and they'll work on glueing anything down. Once you have your pictures in mind, the paper to go along with it, adhesive, and a cutter...you pretty much are ready. There are NO RULES to scrapping, only a million techniques to choose from!! Remember that no one is judging it. If you use a picture that is meaningful to you then it doesn't matter if the page you make is too simple or too overdone...or even if it looks like a total mess, if that picture makes you smile, or remember a moment in your life...seeing it is the most important thing. So don't be afraid to be too simple, or to be wild!!! It's about the picture, your memories. I've seen too many people get so overwhelmed by tools and technique that they just stop. But please don't. You are an important person in this life. What you want to save for yourself is magic, it's your treasure. I scrapped a page with a copy of a check I bounced! I scrapped it to remind myself that I'm not perfect but I'm trying, and some days, you've just got to get formula for your kid no matter what!! I've scrapped gum wrappers because I LOVE GUM!! I'm a nobody. I'm just a mom. But I'm a person...and I'm worth loving. I learned to love myself through scrapbooking and I've learned that I'm human. I make mistakes...and I do truly wonderful things. I just hope to pass that on to others, that belief that you can't change the world, but you can change YOUR WORLD into something truly wonderful. I'm the queen of everything, in my scrapbooks at least!
Ok, I'm writing a book here so I'll just answer your question.
Get photos, a paper cutter, some glue...and find your voice. BOOM! Instant scrapper. You'll be great at it and don't judge yourself. You've got to learn to skate before you can do all those crazy flips...give it time and a chance. And if you totally hate it?
Use your scrappin' tools and pick up card making. Everyone loves a homemade card. Become a stamper. Rip up your papers and start decoupage or learn to alter books or furniture into art pieces. Scrapping isn't limited to just albums.
Personally? 12x12 is great. But you're just starting. The best bet for your money and to get more out of your papers is to do 8x8 or my favorite 8 1/2 by 11. I like that size the best because you can do tons with it, you can buy more sheet protectors and binders in bulk at your local office supply store. PLUS, it's not as hard to store them and you can print easily on them if you don't like your handwriting. I cut down my 12x12 papers and save the excess for cutting out shapes and letters, borders for pictures, etc.
I hope the best for you and hope that you have yourself more than a project, but a newfound sense of importance and love for yourself. Scrap everything!!!
Have fun, I know you will love it.