[Agingcoder]

You need time.

A full time job and small children for example don't leave much space for extended coding sessions on side projects, unless you're lucky enough to need little sleep.

I've worked around this by learning at my day job : read books/papers at home (this is relaxing), and look for opportunities to apply this knowledge at the office. Unfortunately, it stays at the office though, and can't be shown as proof of your skills outside of the company.