You know that I love to choose just the right stationery, cards, invitations, and envelopes. I also like to choose the perfect postage stamps as a finishing touch. If you’re planning a child’s birthday party soon, you may want to check out USPS’s new Disney Pixar “Send a Hello” Forever Stamps. A pane of 20 self-adhesive stamps costs $8.80 and includes four each from the movies Cars, Ratatouille, Toy Story, Up, and Wall-E. Available at USPS.com.