I have a little problem with lactose. I can eat milk and derivate, but I do eat before a pill of enzyme. I have created this portable and fashion pillbox. You can use this alone or with keys like keyring.

There are space for 4 pills inside. The ring block one side of pillbox and the other side is a little 3D printed plastic part. I have share this on Thingiverse (http://www.thingiverse.com/thing:1093177).

Step 1: Materials

The materials for this project are only three.

A 10 mm aluminium bar (the the length depends on the number of pills you want to take)
A little chain
Piece of wood or 3D printed plastic (http://www.thingiverse.com/thing:1093177)

Step 2: Cutted, Holed and Glued

Cut the aluminium bar where do you want.
I use 4 pills per day. I have measured the 4's pills dimension and after I have cutted the aluminium bar.

After I made a hole through the top of the pillbox.
I entered the small chain and then I used the molded part to close the low side. For safety I used a drop of glue to secure the plastic with an aluminum body.

That's all folks!