I built Sweetheart.io for myself, originally -- then had several friends request access so they could send postcards, too. The basic idea is that you can subsc

I built Sweetheart.io for myself, originally -- then had several friends request access so they could send postcards, too. The basic idea is that you can subscribe your girlfriend/wife/husband/boyfriend* to receive small tokens of your love every month -- in this case, well-designed and romantic postcards with a sweet message on them. The potential "downsides" to this idea are people perceiving this as being lazy, or automating something that should be personal. In my opinion, though, it is sweet to subscribe a loved one to a service like this -- my wife is very happy when she receives her monthly card in the mail! * While I'm targeting men -> women from a marketing perspective, I've made sure to keep all of the cards gender-neutral, so any partner can enjoy this service :)