Don't invest in things you can't control

Colm O Tuathaill spent 21 years working for Eircom, latterly as a senior manager, before founding an IT consultancy company, IBT Solutions (www.ibtsolutions.net) in 2003.

The company was formed to meet the technology needs of small and medium-sized businesses. It offers technology solutions reviews, design and implementation. It can also manage its customers' IT systems remotely.

What's the best investment you ever made?

A modestly priced lunch in a well-known Dublin bistro. It ...