Plugins That Just Work

Post Order

http://wordpress.org/plugins/intuitive-custom-post-order/

Image & Gallery Lightbox

http://wordpress.org/plugins/wp-slimbox2/

Membership

https://wordpress.org/plugins/members/

Backup

https://wordpress.org/plugins/updraftplus/

SEO

https://wordpress.org/plugins/wordpress-seo/

Edit Widget Text

https://wordpress.org/plugins/black-studio-tinymce-widget/

CSS Overrides

https://wordpress.org/plugins/simple-custom-css/

Google Fonts

https://wordpress.org/plugins/easy-google-fonts/

Gallery Custom Links

https://wordpress.org/plugins/wp-gallery-custom-links/

Regenerate Thumbnails

https://wordpress.org/plugins/regenerate-thumbnails/

Under Construction

https://wordpress.org/plugins/underconstruction/

URL Redirects

https://wordpress.org/plugins/simple-301-redirects/

Ecommerce

https://wordpress.org/plugins/wordpress-ecommerce/

https://wordpress.org/plugins/woocommerce/

Calendar

https://wordpress.org/plugins/the-events-calendar/

Forms

https://wordpress.org/plugins/contact-form-7/
https://wordpress.org/plugins/flamingo/

Builder

http://codecanyon.net/item/visual-composer-page-builder-for-wordpress/full_screen_preview/242431