On the Web: The 4 Catastrophic Mistakes of Any 
E-Commerce Website Upgrade

2. no calls to action on your homepage;

3. including very few links from your homepage to your product pages;

4. no email sign-up above the fold on your homepage;

5. no search functionality on your homepage;

6. no cross-sell/upsell opportunities on product pages or in the shopping cart; and

7. a lengthy checkout process.