ZipCar Systems to Open Your Home

Need

Ok, if you have not seen my previous post, please check it out before reading this one because this idea is just a "sub-idea" to my previous post: http://www.marceloburbano.com/2013/08/zipcar-system-for-individuals.html

The need is similar to my previous post. I am tired of looking for my keys to open my home. Can we put the opening system in my wallet or anything that I am wearing (e.g. my watch)? Given that I only really know about the ZipCar system to open car doors I am going to follow my instinct that the first global/massive way to open home doors would look like a cardkey.

Description

Bla, bla, bla... you know how it is going to look like if you read my previous post. The only piece that is different is the third party installer. In this case I am thinking of two types: the security companies that install the alarms in every developing country (and some developed countries now that inequality is rising) or the companies that offer security doors (those doors that are not your regular "Joe Door" but made of steal and very very difficult to open if you do not have the key).

Potential

Again... bla, bla, bla... if this worked for cars... hmm let me think, is there more homes that cars?... yeap! ok so you see my point on "potential".

The Perfect Car Seats

Need:

Some parents nowadays have the big dilemma of having two young kids and one normal (i.e. not a van) car. The problem is when you have to put two car seats in your normal car. You will fit them fine but the middle seat would become useless for any normal-sized adult. 

Description:

Create an option of two car seats that will fit in a way that will allow for a third passenger on the second-row seat. These car seats have to follow the security standards (of course) of other car seats. They also need to be useful for the different age stages of a kid (i.e. convertible).

Potential:

I believe Evenflo has revenues of $300M selling car seats and strollers. Maybe expect a $10M company with only this product?