Things I recommend doing in Hoi An:

• Go to Cargo Club Restaurant at 8 AM and get the chocolate croissants.  They come out of the oven at that time, and they’re best right then.  Later on in the evening, drop by for a really rich  dessert.
• Go to Thung Bac for Cao Lao (found only in Hoi An). The Banh Xeo is also tasty.
• Get tailored clothing.  While there are store fronts on every few steps, they all go back to 2-3  big tailor shops.  Choose the one with the best stitching on their samples, the best cloth selection and the best prices.