I have been following a leaf out of my own book this week and re-attempted some of my old challenges.
I selected a bead bracelet that combined my black, white and beige outfit.
I gave the navy and khaki look another spin (note the M&S leopard trainers and the Primark grey cardi which is on the chair ready to add to the look later in the day.)
I tried plaid and pearls but this time with earrings in the pearl.
The challenges are not one-offs. If it worked for you first time around revisit it and try the look for another season or another item or audience. In my case the more I do plaid and pearl or matchey-matchey the more it may become second nature.