so as a bit of summery to date , what i have seen and do to reduce code size and ram allocation are as follows.
But this is no where near complete , but add / correct where needed !!!
1. Use the correct variable size – eg bit byte word
2. Where multi flags are required of setup myflags as a byte, with variable = myflags.0, for each flag
Code:
  Myflags var byte 
Timeout_flag_0 var  Myflags.0 
Timeout_flag_1 var  Myflags.1
Fade_flags_0     var Myflags.2 
Fade_flags_1     var Myflags.3

3. Keep variables that are used in subroutine to min and reuse in each subroutine ( don’t forget to set to 0 in each routine at start)
4. Keep Global variables to small number and to a byte
5. When doing a read such as pulsin , and using a word variable , if accuracy is not as a big issue for other processing then dont assign words to an array with the results / divide the result so a byte value in array is used
Code:
 
FOR X = 0 TO 31                  ' grab 32 incoming pulses
       PULSIN IR,1,leader          ' now measuring high-going pulse widths   ( pulsin_max set to 21600 = 108ms )
       BtnVal(x) = leader/2        ' leader divide by 2 so array Btnval(x) is byte (<255) not word value  
  NEXT X
6 where practical for code reading and structure , replace case select code with if , then statements


Code:
           if DByte[4] = $6F then                  ' Red - remote 1 
              read remotetype + Red ,STDByte[4]      ' read eeprom remote 2 location + button offset   
              STDByte[3] = (~ STDByte[4])            ' bitwise Not the value of byte4 to be byte3 
           endif
           if DByte[4] = $4F then                  ' Btn01 - remote 1 
              read remotetype + Btn01 ,STDByte[4]    ' read eeprom remote 2 location + button offset   
              STDByte[3] = (~ STDByte[4])            ' bitwise Not the value of byte4 to be byte3 
           endif
           if DByte[4] = $57 then                  ' Btn02 - remote 1 
              read remotetype + Btn02 ,STDByte[4]    ' read eeprom remote 2 location + button offset   
              STDByte[3] = (~ STDByte[4])            ' bitwise Not the value of byte4 to be byte3 
           endif
           if DByte[4] = $67 then                  ' Btn03 - remote 1 
              read remotetype + Btn03 ,STDByte[4]    ' read eeprom remote 2 location + button offset   
              STDByte[3] = (~ STDByte[4])            ' bitwise Not the value of byte4 to be byte3 
           endif
7 replace if x= 1 And y=1 then statements , with multi if statements , uses less words in compile


8. when doing a read from a table in eeprom , its better to multi reads than keep in variables
9. assigning constants with a variable name and use as the offset in lookup table and then doing a read at that location is better than using a variable for each name in the table
10 love DT_int14.bas , routines but has high hit on ram on small pics , so better to use for all interrupts for timers , IOC etc , than setting up other code to monitor interrupt flags outside of DT routines
11 math calculations , not sure , not had to do much of those where its been an issue ??