A wide assortment of marketing tools are required to woo and win customers. People now know that time is not money, but is far more valuable. Respect this by being easy to do business with and running your company for the convenience of your customers, not yourself. The real profits come after you've made the sale, in the form of repeat and referral business. Non-guerrillas think marketing ends when they've made the sale.
Guerrillas know that's when marketing begins.
There are elements of your business that you take for granted, but prospects would be amazed if they knew the details. Be sure all of your marketing always reflects that amazement. It's always there. You can actually double your profits by measuring the results of your marketing. Some weapons hit bulls-eyes.