Surely checkered shirt can’t be replaced by anything else in the wardrobe but it isn’t enough for fashion-look.
Print on fabric isn’t the only way to get squares. Squares can also be knitted or embroidered. The latter is fancier. So knitted trousers are the best choice to weigh out your look.
The juxtaposition of squares and lines isn’t an easy proficiency. But if you risk, you should choose clothes with large patterns.
The main rule to have a success is to think big but go small. The choice of clothing has some sequences: a shirt with small squares, tie with large patterns, suit with larger squares.
When it gets cold it’s time to wear a thick coat which looks elegant with trousers.