I have been gaming for nearly 30 years so have quiet a bit of kit. Here is a list of the armies I own.

Ancient Celts (28mm) - small collection of about 80 figures.

English Civil War - (28mm)

Great Northern War (28mm and 15mm)

Marlburian (15mm)

Seven Years War (28mm)

Napoleonic (15mm)

American Civil War (28mm)

Franco Prussian War (20mm)

Boer War (28mm) - small collection

First World War - early (28mm and 15mm)

First World War - late (28mm)

Second World War Eastern Front (15mm)

Second World War North Africa (20mm)

Second World War North Africa (15mm)

Second World War (6mm)  

Second World War East Africa (28mm)

Second World War North West Europe (28mm) - infantry only with odd vehicle

Second World War North West Europe (10mm) - lots of vehicles