One thing that is important for a new business is to grow your client and email list. A great way to do this would be to include subscription forms on your site, so website visitors can opt-in to your newsletters and promotions. MailChimp for WordPress is one of the best email marketing services you can have for your site as it will help you collect and manage your subscribers with ease. This awesome plugin lets you create beautiful opt-in forms so you can add more subscribers to your email list. These opt-in’s can also be integrated with nearly all other forms, as it supports all the major form plugins on your site, so it can be included with your contact forms, comment section or checkout form. It also connects with your regular MailChimp account in seconds.
If you want good looking, user friendly, and mobile optimized forms for your website, then be sure to download this great plugin for free: https://wordpress.org/plugins/mailchimp-for-wp/