Halloween list building popups

Two to three weeks before October 31 for costume, candy and decor stores; one week is enough elsewhere. End them the day after Halloween.

Choose the dose: a full theme suits playful brands, a single seasonal accent such as a color or an icon keeps a premium store on-brand.

Offer access instead of money: early access to drops, a VIP list, restock alerts, a guide or a giveaway entry. Say clearly what joining gets them.

Ask for one per step. Take the email first and the phone number on a second step, so visitors who only want email still finish.