This is such an oldie, but a goodie too. It works best with a used sticker backing sheet (remove the stickers entirely) but sometimes product packaging can work too.
The key is to just put the sticker letters on the backing as little as possible. Then when you like how they’re lined up place onto your page! Instantly lined up title just how you want it. To get the plastic/sticker sheet backing off just lift gently. It should pop right off and you can smooth your title stickers into place. A great way to make sure things fit before you commit to placing them.
Stickers shown are Kaiser Craft – more on them soon!