Nothing can beat the convenience of browsing the web from the comfort of the living room. However sometimes, once the customer has found what they are looking for they want it now or do not want to pay shipping.
Offer Click & Collect where a customer can simply order and pay online and choose to collect the item from your shop.
This is very easy to setup, requires minimum organisation in terms of logistics if you store already carries most items and is a great way to get the customer into the shop where they may spend more.