But even I, a magpie on a budget, recognise that some things are worth the investment. Things that will last a lifetime, retain their value and grow old gracefully.
These very justifications for the purchase of 'it' bags see women part with hundreds and thousands of pounds for arm accessories - and me the slightly smaller sum I received for my first Guardian piece.

My 'it' bag of choice is the vintage-loving fashion bloggers' favourite - a handmade, leather satchel from the Cambridge Satchel Company.
Having seemingly been around since satchels were the sole preserve of school children, the brand owners must not be able to believe their luck now the practical geek pieces have become 'must-have' fashion accessories. They probably thank the Lord for Alexa Chung and her awkward school boy guises each morning.
But, judging by their 1990s-style website design and functionality and the charming presentation and packaging of my bag, all the attention hasn't gone to their heads.

My satchel, in my favourite colour - grass green, conveniently conforms to this season's colour pop trend, and apparently attracted a compliment on its first outing - missed during a public micro-argument with the husband, who kindly informed me afterwards when we were friends again.
The leather is hard and rigid at the moment, giving the colour a brashness perfect for summer, but give it a few years of constant companionship and it'll soften, with cracks and quirks familiar only to me.
If we're going on cost per wear, I think this one will pay for itself before the year is through.
