Cacher is the code snippet organizer for pro developers

For contact forms: 
- Ninja Forms (By The WP Ninjas)
- reCAPTCHA for Ninja Forms (Aman Saini)

- Contact Form 7 (By Takayuki Miyoshi)
- Contact Form 7 Honeypot (Nocean)
- Contact Form 7 - reCAPTCHA (By iambriansreed)
- Invisible reCaptcha for WordPress - (By Mihai Chelaru)
- Bootstrap for Contact Form 7 (By Felix Arntz)

For menu styling
- My Bootstrap Menu (Michael Carder)

Page-specific customisation
- Advanced Custom Fields (Elliot Condon)
  - Shortcode = <?php the_field('sub_heading'); ?>

For testimonials: 
- Easy Testimonials (By Gold Plugins)
  - Shortcode = [testimonials_cycle count='10' order='ASC' orderby='date' use_excerpt='1']

For galleries:
- NextGEN Gallery (By Imagely)

For search and replace: 
- Better Search Replace (By Delicious Brains)

For adding multiple pages: 
- Bulk Page Creator (By Dagan Lev)

For page load speed and website optimisation: 
- W3 Total Cache (Frederick Townes)

For minification
- Autoptimize (Michael Torbert)

For plugin rollback: 
- WP Rollback (By WordImpress)

For improved security: 
- WPS Hide Login (By Remy Perona for WPServeur)

For viewing the current template in dev: 
- What Template File Am I Viewing? (By The Mighty Mo! Design Co.)

For sitemap: 
- Simple Sitemap (David Gwyer)
  - Shortcode = [simple-sitemap show_label="true" links="true" page_depth="1" order="asc" orderby="title" exclude="1,2,3"]
- Google XML Sitemaps (Arne Brachhold)