Registered Agent Service — Do I Really Need One or Can I Use My Home Address?

Just formed a single-member LLC in Wyoming for my online business. I used my home address as the registered agent because I didn't want to pay $125/year for a service. Now I'm getting marketing spam from "business services" companies at my home address. Is this normal? Should I switch?

Update: Switched to Northwest Registered Agent. They filed the change with Wyoming for me. Already getting scanned mail in the dashboard. Lesson learned — the $125/year is worth the privacy ngl.