What do you do when you see something you want to buy but aren't ready yet?

I'm launching Sortlist in 2 days - an AI shopping organiser - and I'm curious about people's current habits.

Do you leave tabs open? Screenshot it? Add to a retailer wishlist you never check? Send yourself a WhatsApp message?

I built Sortlist because I was doing all of the above and still losing track of things. Would love to know what others do - and whether the scattered approach drives anyone else mad.