It would be nice if we could have some fields on DIY forms auto-fill based on info supplied on other fields. Specifically, if the "name" field is filled out on an online donation form, the "name on credit card" field should auto-fill with the info supplied in the "name" field. Most people will have the same info in each field, so this will save double-entry. Other people can change the "name on card" field if needed.