Many mail-in sweepstakes require entrants to send their forms in envelopes. The most commonly-requested size is the #10 envelope, also known as a business-sized envelope. It's a good idea to have a large supply on hand before you get started.
2. Post CardsAnother common entry method for mail-in sweepstakes is to write your information on a post card and mail it in. A good supply of post cards will ensure that you are never left short-handed when you come across a great sweep.
3. 3x5 Index Cards
Many mail-in sweepstakes ask you to write out your entry information on an index card before mailing it in. To save time, you can write out index cards with entry information in advance. Along with your index cards, you might want to also keep a stack of paper cut to measure 3x5 inches. While many sweeps ask for 3x5 cards, others ask for entry on 3x5 paper.
Scissors are very handy to have in your sweepstakes kit. You will need them to cut UPC codes from boxes, to decorate your envelopes, and to cut paper to the proper size for entry forms.
Every mail-in entry that you send is going to require a stamp. It's a good idea to get a roll of self-adhesive stamps, which will save you time and a sticky tongue.
6. Ball Point Pens
It's a good idea to fill out your entry forms and address your envelopes with ball point pens, since they are less likely to smudge and smear. If your entry is not legible, it will probably be disqualified. Keep a few nice pens in your sweepstakes kit so that you don't have to go searching around for them every time.
7. Envelope Decorating Supplies
Many people like to decorate their envelopes, for the fun of it and in the hopes that it will improve the chances to win. Permanent markers in bright colors and cheerful stickers will brighten up your sweepstakes entries.