Liquid Fence's website explains their products thoroughly and allows you to purchase them with a credit or debit card. The best place to find these products is at Liquidfence.com.
Stores like Home Depot and Lowe's carry Liquid Fence, but they may not carry all or even many of their products. Both websites offer only the Liquid Fence Deer and Rabbit Repellent. Individual stores, however, may have more products available.
Websites like Amazon.com, Sears.com, Buy.com, ANTOnline.com and Cherrybrook.com carry various Liquid Fence products. Online retailers tend to offer lower prices than retail stores.
Check the hardware or garden store in your neighborhood or call ahead to see if they carry Liquid Fence products. Ace Hardware has them in stock, as does True Value. Stores that focus on natural products are the most likely to carry Liquid Fence.