That is so cool Erin! I wasn't scrapping when I got married, but I sure wish I had been.
I use my rotary cutter for everything -- i cant cut straight with scissors, paper trimmers or xacto knives, so I break out the sewing supplies. I have a 36" self healing mat and I am good to go -- the best thing is -- they have a deckled edge blade -- oh, I love it for cards and invitations!
try "antique" stores or second hand shops -- very often they have tons of buttons. I used to live near an awesome one that had patterns, fabric, crafting magazines, vintage thread and barrels of buttons sold by the scoop!