Ecommerce only. Perhaps applying custom vinyl for customers at their location or mine.
We just recently switched out merchant processing company from a 3rd pary provider to our bank. Including fees, we are paying approximatly 2.1% which is considered wholesale rates for our volume. ($100,000k+ monthly).
Your best bet now is to call Merchant Services for Visa/Mastercard. They may quote you in the high 1's but check out their per/transaction baseline cost and their loaded monthly fees cost. You might find that you'll be closer to 2.5% when all done.
If you accept AMEX, you are looking at closer to 3.25%.
We always like to include a "Handling charge" with every order. This helps offset merchant fees.
You should offer a PAYPAL and Google checkout features. Their fees are about the same. Any other questions, let me know. Good luck.