I created a wish list with the objects and gadgets that I'd like to buy (eg camera, smartphone, navigator). For the latter, for each model that I chose I entered in the "url" link to the official website of the manufacturer or a link to an online store.
In "Notes" section I have included cost, store name and date of last visit to this form:
€ 249 - Eprice - 04/01/10
€ 239 - Eprice - 04/01/10

Greetings from Italy!