I didn’t have weeping over a seven-year-old Valentine’s Day note on my bingo card for this week – but hey, life can always surprise you. The unexpected journey into soppy nostalgia was prompted by an initially casual, then fiercely impassioned, debate in the office. The hot topic on the table: should you keep mementos – love letters, cards, photos, keepsakes – from exes? Or does it prevent you from moving on? And could clinging onto those totems of the past be deemed disrespectful to your new partner, particularly if the pair of you are moving in together?