https://tools.woot.com/offers/safer-home-sh502-indoor-plug-in-fly-trap-21?ref=w_cnt_sc_is_1_ph Safer Home Indoor Plug-In Fly Trap (SH502) on sale for $4.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.