thanks, please, and sorry
Tack!
Ursäkta!
Varsågod!
PS : Snälla ... is not the way to say please
... it sounds too much like a child begging for "godis" (candy)
replying, on what was said before
jättebra!
Again you can double it for more impact
jättejättebra!
häftigt! ... cool!
signature
Common in Sweden is to start the final line with a / some do it with 2 //
/ Greta
//ShinyZoroark
wishes for the nearby future
ha en bra helg
ha en trevlig semester
Varsågod also to start a sentence !
"here you are" can be used to start some text too. As shown here
/ fluent 
/ learning 
/ fan of 
(bs/bl)