Making a random coin collection more sensible

What should I collect?

I have enjoyed building my coin collection but it is a bit random. There is a pre-decimal selection and lots of circulated coins. As my interest grows I realise there could be benefits to be had from specialising in a particular area. It could be coins by type, by date or by country. Before I head to eBay to see what is available I need to know what I want. The box of random coins needs some order to it but there is probably something inside that I could start to build a more sensible collection around.

What coins have I got?

As the collection grows, it isn't practical to access the coins regularly and to remember what there is. The first step is to catalogue each one for reference. This will help me know what I have and will make research easier. The data could identify common types within the collection and the physical collection could then be organised accordingly.

What and how will I collect?

I will always keep a collection of the coins I find and without targeting any particular type, I accept that there will be a wide variety. Good storage is important and by cataloguing everything there should always be some order to the collection. As for the coins I plan to collect, I have some ideas to give my search purpose. I don't want to be restricted and cost is also an important factor to consider.

Turning some loose coins into a collection. 

Possible ideas for focus include:

-Images of Britannia (There are loads, but it's a clear type to target for a collection) 

-UK one pence coins (with grade in mind) 

-a series of Florin (1849-1970)
-something new to start a collection around (this would be a good time to choose a speciality and decide how much to invest).

Britannia Two Pound coin