1% Let us define a header
 2%% Starting with some fonts
 3\font\xmplbx = cmbx10 scaled \magstephalf 
 4%% Here you define the font named \xmplbx by calling the actual font
 5%% named cmbx10 and you say that is going to be scaled...how much
 6%% is the scale, you may ask?
 7%% \magstep is for magnification, and you magnify by 1.2
 8%% i.e. cmbx10 scaled \magstep would be the font cmbx10 scaled at 1.2,
 9%% meaning a 20% increase in the scale.
10%% All the `magsteps' are powers of 1.2,
11%% \magstep2 for instance would be a magnification of (1.2)^2...
12%% which means that \magstephalf is exactly a magnification of
13%% \sqrt{1.2} because LOL!
14% Same here but with the italics font
15\font\xmplbxti = cmbxti10 scaled \magstephalf
16% And now you can define the header as a two parameters command
17% which you align to the left and use different fonts in different places
18% then at the end you add an extra vertical space.
19\def\xmpheader#1#2{\leftline{\xmplbx Example #1:\quad\xmplbxti #2}\vglue .5\baselineskip}
20%% Pure gore.
21% And now you can write a header...
22\xmpheader 1 {Simple text}
23
24And this is some actual text which will appear in the document.
25% The moral of this is: Kids use LaTeX, there is no point to this.
26% Once your life is numb and want to at least feel something
27% then go and use TeX.