I just started saving too!
I sat down and wrote down all our bills (OK, I'll geek out: I totally made an excel spreadsheet

) Made a grocery/eating out budget and a "fun money" budget for DH and I. Then I set up an automatic transfer every paycheck into my savings.
I already coupon, but I'm going to try to get "serious" about budgeting too, so that the "just a couple bucks" doesn't add up so fast. I sold off a TON of the kids' clothes (took to consignment, and what consignment didn't want I sold as lots on Craigslist). I also think we're switching from DISH back to cable and dropping our home phone line; shopping around for our auto insurance, etc. I also get a bonus every year in April, so that's going straight into the Disney fund this year.
I'm also Swagbuck-ing, and everytime I get a $5
Amazon gift card, I'm transferring $5 from checking into savings. My goal is 1 gift card per week. Between now and our trip, that's $330, or basically a round-trip plane ticket. I buy a TON on Amazon, so it's a good deal for us.
DH has been slightly skeptical about my budgeting idea, but I'm really gung-ho about it.