Disposable razor with shaving foam container

A disposable razor is used three, maybe four times, maybe five (if you have a really thin beard), six at most (if you are really cheap). Now, shaving foam consists mostly of air, which means a relatively large end amount of foam can be stored in a small container.

At the same time, disposable razor's handles are hollow plastic tubes, added for reasons of ergonomy and enhanced grip (because, I have to admit, holding the bare razor would be impractical), but are otherwise just taking up space.

My idea would be to have small shaving foam dispenser built into the razor handle. ([link]; done in Paint in two minutes). The handle could hold enough foam for three to four shaves, after which you would throw the razor away either way.

This would be a practical solution for travellers, who wouldn't have to carry a bulky can of shaving foam, while having to carry a lot of hollow tubes, pretending to be razor handles, but actually only adding to the bulk of things you have to drag along.

This is my first semi-baked idea (the level of baked-ness to be determined by your votes), so I don't know how to format the text or add line or paragraph breaks. Also, my spelling, grammar and overall style may or may not be disastrous (I don't know), so please warn me of any typos or other errors you notice in the text. Thank you.