Keeping Baby Blankets Soft

Anna • Waiting patiently for Anna'Sophia👶💕💜👪 😊 Due October 31st 2015 💜💕
So ladies I am 38 weeks & finally getting to wash all the baby clothes but I'm debating whether to throw in all her blankets. They are all super soft & I'm afraid to ruin them :( Any tips on how to keep them soft?