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http://www.wpexplorer.com/best-woocommerce-snippets/

1 – ADD PAYMENT TYPE TO WOOCOMMERCE ADMIN EMAIL
2 – UP-SELLS PRODUCTS PER PAGE / PER LINE
3 - REMOVE PRODUCT CATEGORIES FROM SHOP PAGE
4 - QUICKLY TRANSLATE ANY STRING
5 - EXCLUDE A CATEGORY FROM THE WOOCOMMERCE CATEGORY WIDGET
6 - ADD A CUSTOM FIELD TO A PRODUCT VARIATION
7 - REPLACE “OUT OF STOCK” BY “SOLD”
8 – DISPLAY “PRODUCT ALREADY IN CART” INSTEAD OF “ADD TO CART” BUTTON
9 - HIDE PRODUCTS COUNT IN CATEGORY VIEW
10 - MAKE ACCOUNT CHECKOUT FIELDS REQUIRED
11 - RENAME A PRODUCT TAB
12 - LIST WOOCOMMERCE PRODUCT CATEGORIES
13 - REPLACE SHOP PAGE TITLE
14 - CHANGE A WIDGET TITLE
15 - REMOVE WOOCOMMERCE DEFAULT SETTINGS
16 - CHANGE “FROM” EMAIL ADDRESS
17 - DECODE FROM NAME IN WOOCOMMERCE EMAIL
18 – RETURN FEATURED PRODUCTS IDS
19 - ADD CUSTOM FIELD TO EDIT ADDRESS PAGE
20 – DISPLAY ONSALE PRODUCTS CATALOG SHORTCODE
21 - HAVE ONSALE PRODUCTS
22 – SET MINIMUM ORDER AMOUNT
23 - ORDER BY PRICE, DATE OR TITLE ON SHOP PAGE
24 - REDIRECT ADD TO CART BUTTON TO CHECKOUT PAGE
25 - ADD EMAIL RECIPIENT WHEN ORDER COMPLETED

http://www.wpexplorer.com/best-woocommerce-snippets-wordpress/

1 – REPLACE WOOCOMMERCE DEFAULT PAYPAL LOGO
2 – REPLACE DEFAULT PRODUCT PLACEHOLDER IMAGE
3 – REMOVE “PRODUCTS” FROM BREADCRUMB
4 - EMPTY CART
5 - AUTOMATICALLY ADD PRODUCT TO CART ON VISIT
6 - ADD A CUSTOM CURRENCY / SYMBOL
7 - CHANGE ADD TO CART BUTTON TEXT
8 - REDIRECT SUBSCRIPTION ADD TO CART TO CHECKOUT PAGE
9 - REDIRECT TO CHECKOUT PAGE AFTER ADD TO CART
10 - CC ALL EMAILS
11 - SEND AN EMAIL WHEN A NEW ORDER IS COMPLETED WITH COUPONS USED
12 - CHANGE RELATED PRODUCTS NUMBER
13 - EXCLUDE PRODUCTS FROM A PARTICULAR CATEGORY ON THE SHOP PAGE
14 - CHANGE SHOP COLUMNS NUMBER
15 - DISABLE WOOCOMMERCE TABS
16 - REMOVE BREADCRUMBS
17 - RESTRICT SHIPPING COUNTRIES LIST
18 - REPLACE “FREE!” PRODUCT STRING
19 - HIDE ALL OTHER SHIPPING METHODS WHEN FREE SHIPPING IS AVAILABLE
20 - MAKE CHECKOUT “STATE” FIELD NOT REQUIRED
21 - CREATE A COUPON PROGRAMATICALLY
22 - CHANGE EMAIL SUBJECT LINES
23 - ADD CUSTOM FEE TO CART
24 - CUSTOM ADDED TO CART MESSAGE
25 - ADD PAYMENT METHOD TO ADMIN EMAIL