In my opinion, invitation kits are a fantastic base to start out with when creating your perfect invitations. This instructable gives some ideas on how to personalize your invitation when starting out with a kit.
Step 1: Selecting your kit.
This is the kit that I found at Mimio in Pasadena. http://www.mimiopapers.com/
The delicate cherry blossoms give a garden type feel which was perfect for the vibe I wanted to give for my planned event.
Step 2: Materials
Ink from Blick, and also green flat cards, white flat cards, green envelopes and cherry blossom paper from Paper Source. (The ribbon came from my giant box o ribbons but I believe I picked it up down at the Flower Market in downtown LA.)
Step 3: Tools
Pinking sheers you can get from a place like JoAnne's
Pen you can get from Michael's or an art store.
Step 4: Addressing - Part 1
For printing addresses on envelopes, Scotch makes removable tape. This is PERFECT for tacking that flap down to run through the printer smoothly. No paper jams and crumpled envelopes = no tearing out hair and buying more envelopes.