+++ Tea Time

Tea Time

Finally, I have started to stitch the "Tea time" from the magazine "le style anglais" for 2 weeks, because I've been very busy.
Hope I could have a time to stitch, but I really need to know how to manage a lots of coulors of threads, because so easy to confuse the coulors and numbers.
Can somebody tell me how to manage many different colours, please?

Are you using this kinda cards?