bored cat while on vacation

Hi! I am going to be going out of the country for 2.5 weeks next month, and I was wanting some advice about keeping my cat happy while I am gone. I have a trusted friend who will be checking in on my kitty every day so food, water, and litter will be no problem. However, my kitten is used to alot of attention, and he gets upset whenever I leave for more than a day or so. What else can I do to make him happier until I get home? He has plenty of toys, and I've asked my friend to play with him a bit when he comes over.... Thanks for your help!

Prior to leaving, take a stuffed animal and sleep with it. Keep it close to your body for several nights, so that your scent gets all over it. Stick it in a plastic zip lock bag and leave it with instructions that your friend give it to your cat about 4 days after you leave. Having a lot of toys isn't as important as having your scent near and having your friend just spend quality time with him is more important. Pet Sitters are really good for this type of extended vacation leave as well.