My DS really tries to avoid napping during the day it seems! I try to always start our day at 7am (although he often wants to start it earlier) and if we do that, he'll have a morning nap of about 45 mins at 8.15am. Beyond that, what happens is anybody's guess and he gets so grouchy if he doesn't sleep. We do different things every day - lunches, mum and baby groups etc, so I don't know what to do. Help!!
what worked for us was really paying attention to the baby - start looking out for them getting tired as early as an hour and a half after their last nap and as soon as they rub their eyes or yawn etc then start putting them down.
it helped us to do the same thing everytime so when possible put them down in the cot, in the sleeping bag with the music on etc...we did have to sit and hold hands at first but now our 4month old ds goes down (mostly) without a fuss...
you dont need a strict routine as long as they go down when they're tired and not when they've tipped over into nightmarish overtiredness I think.
if you're out and about tho dont they nap in the buggy/car seat?
I remember my 11 month old DS going through exactly the same at that age. I tried different things, but definitely keeping consistent and watching out for body language signs will help. I once read that babies spend the first three months establishing night-time sleep (or some pattern of) and months 3 - 6 establishing daytime sleep.
DS1 was/is like this and fights sleep like he's afraid he'll miss something exciting. We found that he would nap best if put down before he was really tired but he never mastered the art of going to sleep himself.
with ds2, i am trying hard to teach him to settle himself but i have found that by giving our day some routine, he is finding his own within that. ie he has a bf at 7am so is happy to sleep in his cot at 8 til about 9.30 and he's identified that as nap time. we always go out about 12.30 even if its walking the dogs for an hour and thats another cue for a nap.