You may feel your boots are just slightly too small to be at optimum comfort. Obviously we are not talking about two sizes smaller, but that feeling that if it had been a 1 cm bigger it would just feel perfect.
This wikihow article gives you some awesome hacks to get that extra space, using socks, hairdryer, freezer, alcohol and more.

These are all extremely easy to apply and very well explained.  http://www.wikihow.com/Stretch-Leather-Boots 

The other thing you want is to get yourself a shoe horn. We do loose a significant amount of time trying to get in and out of shoes whereas a basic shoe horn actually speeds things along quite nicely.

Leather stretches naturally overtime, so once you have confirmed everything is good with your boots, don’t hesitate to wear them at home to “break them in” .