Among the number of firms applying technology to traditional back-office functions, Landa said "one of my favorites is Wave Accounting, because they're free." Indeed, Wave's "un-pricing" plan won't cost SMBs a penny--the vendor makes money from targeted special offers for businesses that a user sees when they're signed into their account. You can do away with manual receipt tracking--Wave will import both income and expenses from your bank and credit card accounts and categorize them automatically. And if you're a control freak? You can bypass the automation and enter information by hand.