You can empty your hand with the hand swap card.

If you have two cards left, and one is a swap card, you can play the swap card without calling "SOLO!" and the penalty is applied to the player who takes your hand. (THIS DOES WORK AS OF 10/10/23)

Remember to think about the links between cards (numbers/colours), if you have number 1 in red and green and a 2 in red. The colour is red right now, so play the 2. Then play the red 1 which on your next go, you can connect to the green 1.