Walmart offers the Gillette Limited Edition Mach3 Turbo Razor Gift Pack for $9.94. Opt for in-store pickup to dodge the $5.99 shipping fee. That's $20 of and tied with our mention from two weeks ago as the lowest price we could find. It features three blades, and fits all Mach3 blade refills.
Before you spend another dollar on items and services like these, check with your public library. You will likely be surprised by what it offers for free.