Why, you ask? Well, because non-essential but nice-to-have extras like festive underwear and chocolates are far easier to find at the last minute than the more expensive stuff (that sometimes sells out)! Plus, it’s always good to get your biggest spends out the way early on, while you’ve still got the budget left.
Article source: https://www.huffingtonpost.co.uk/entry/spenny-christmas-presents-to-sort-out-early_uk_636a7d7ae4b06d3e4254f9d6